taxonID	type	description	language	source
03B78785FF898510FF5C50F7180C2166.taxon	diagnosis	Diagnosis (modified after Wilson & Hessler, 1981). Natasome elongate, streamlined, pereonites 5 and 6 fused dorsomedially with dorsolateral margins free, pereonite 5 longest laterally, venter having large posteriomedial bulge with setae, and pair of convexities on each side of middle part of pereonite 5, pereonite 7 separated, subequal to pereonite 6 in lateral length, venter with narrow rounded ridge. Posterolateral margin of pleotelson angled ventrally in lateral view. Rostrum large, quadrate, constituting largest part of dorsal surface of head with distinct lateral margins, frons low. Antennular article 1 without distomedial lobe, article 3 shorter than article 2; labrum longer than clypeus; mandibular molar cylindrical, elongate, longer than condyle, palp length subequal to mandibular body length; maxilliped epipod elongate, length subequal to basis length, without angled lateral projection, tip pointed; medial lobe of palp article 4 longer and broader than article 5. Female pleopod 2 conical; male pleopod 1 navicular, with deep keel, distal lobes subequal in size; pleopod 2 protopod semicircular, stylet length about half protopod length, exopod narrow. Distal plumose setae of pleopod 3 endopod less than half length of endopod; exopod about 0.3 times as wide as and slightly longer than endopod, distal seta small. Uropod elongate, endopod about twice as long as protopod, exopod tiny, shorter than protopod.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF898510FF5C50F7180C2166.taxon	discussion	Remarks. A distinct ventral bump on the posterior part of pereonite 5 and a large labrum were the characters indicated by Wilson and Hessler (1981) for unambiguous separation of Belonectes from its most closely related genus Disconectes. After the study of the new species we suggest some additional useful characters to distinguish Belonectes. Species of Belonectes posses the peculiar pattern of the total ventral sculpture of the natasome which includes not only the medial bulge on the pereonite 5, but also a pair of convexities on each side of the bulge, and a narrow rounded medial ridge on the pereonite 7 in front of the pleopod insertion. A medial lobe of article 4 of the maxilliped palp, which is longer and broader than article 5, can easily mark species of Belonectes: all other members of the Eurycopinae have the article 5 longer or equal to the lobe of article 4. A navicular male pleopod 1 with a deep keel is typical for all species of Belonectes. The most useful characters to distinguish species of Belonectes are the size of the antennular article 1, the shape and size of the maxillipedal palp articles 3 – 5, and the shape of the distal margin of the male pleopod 1, the shape of distolateral part of the protopod of the male pleopod 2, as well as the size and shape of the preanal ridge, and the size of the uropod exopod.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	materials_examined	Material examined. Holotype. male (1.9 mm), ZMH K- 42034, ANDEEP III St. 78 – 9 – E, 22 February 2005, 71 ° 09.52 ’ – 09.34 ’ S, 14 ° 00.76 ’ – 13 ° 58.85 ’ W, 2149 m. Allotype. Preparatory female (2.2 mm), ZMH K- 42035, same locality as holotype.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	description	Paratypes. ZMH K- 42036, juvenile male (1.4 mm) and juvenile female (1.3 mm), same data as holotype.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	etymology	Etymology. The species is named in honor of the outstanding American marine biologist J. Frederick Grassle who always supported deep-sea research and is one of the founders of the Census of the Marine Life.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	description	Description of male, holotype. Body (Fig. 1) length 2.5 width of pereonite 5, body height 0.31 of body length. Head length 0.6 width, length behind antennula insertion 0.7 antennula article 1 length; rostrum length 0.7 head length. Rostrum width between bases of antennulae subequal to length, width 2.6 antennula width. Cephalic keel weakly expressed, clypeus 1.6 as wide and 0.5 as long as labrum. Pereonite 1 almost as wide as head, shortest laterally, length 0.5 length of head behind antennula insertion; pereonites 2 – 4 slightly broader, laterally almost twice as long as pereonite 1, anterolateral margins of pereonites 1 – 4 and anterior projections of coxae acute. Natasome length 0.7 body length, width 1.3 width of head; pereonite 5 lateral length equal to lateral length of pereonites 6 and 7 together; pereonite 7 shortest. Lateral sutures between pereonites 5 and 6 relatively long: fused middle part about 0.5 of pereonite 5 width; ventral bump of posterior part of pereonite 5 with few setae. Pleotelson length 0.8 width, 0.3 body length, preanal ridge rounded terminally, bent posteriorly, length 0.25 pleotelson length, about twice as long as uropod protopod. Antennula (Fig. 5) about 0.5 of body length; article 1 reaching mid-length of rostrum, length 1.4 width, with 1 dorsal broom seta, article 2 0.6 length and 0.4 width of article 1, with 3 distal broom setae; article 3 length 0.6 of article 2; article 4 length 0.5 article 3 length, article 5 slightly shorter than article 1, article 6 as long as article 4, following 34 articles length 0.5 article 6 length. Antenna incomplete (broken off) on all specimens (Fig. 5): articles 1 – 4 subequal in size, scale on article 3 narrow, with distal seta. Mandible (Fig. 4) pars incisiva with 4 cusps; lacinia mobilis of left mandible almost as long as pars incisiva, with 5 teeth; spine row with 7 and 8 spines on left and right mandibles respectively; condyle length 0.6 molar process length; palp length 1.2 mandibular body length, article 1 stout, with 2 setae, article 2 1.5 times as long as article 1, with 2 slender medial and 1 stout distal setae, article 3 with row of lateral setae and long distal seta. Maxilla 1 (Fig. 5) lateral endite width 1.6 mesial endite width, with 12 distal spine-like setae, longest distolateral seta slightly longer than endite width. Maxilla 2 (Fig. 5) middle endite shortest, mesial endite longest, slightly narrower than lateral and middle endite together, with 6 strong and numerous slender distal setae lateral and middle endites with 2 long and 2 shorter distal setae each: shorter setae on middle endite of equal length, on lateral endite 1 seta just slightly shorter than 2 long setae and inner seta much smaller. Maxilliped (Fig. 5) basis length 3 width, endite with 3 coupling hooks, distal margin slightly concave, with numerous simple slender setae and a few stout setae, lateral margin expanded, rounded; palp inserted after 0.6 length of basis, article 2 lateral margin slightly convex, length 1.5 length of medial margin; article 3 medial margin straight with several whip setae, medial length equal to lateral length of article 2; articles 3 – 5 subequal in length laterally, medial lobe of article 4 elongate, width 1.3 article 5 width, with 5 distal setae; article 5 with 1 lateral and 3 distal setae. Epipod length 3 times width, slightly shorter than basis, with fine distal setae. Pereopods incomplete (Fig. 1 B, C) see description for juvenile specimen below. Pleopods (Fig. 6): Pleopod 1 length 3.4 midlength width, deeply keeled at midlength, depth 0.25 length, distal margin bent ventrally, medial lobes rounded, with 2 small setae each, lateral lobes nearly the same size more acute distally. Pleopod 2 protopod semicircular, length 1.4 width, lateral margin with 15 rather short plumose setae, stylet length 0.5 protopod length, sperm duct open at mid-length of stylet; exopod narrower than basal article of endopod, inserted on 0.15 of protopod length from distal margin. Pleopod 3 endopod length 1.4 width, distal plumose setae length less than half of endopod width; exopod 1.2 length and 0.4 width of endopod, distal article separated, length 0.6 basal article length. Pleopod 4 endopod length 1.6 width, exopod length 0.8 endopod length, distal plumose seta half as long as exopod. Pleopod 5 length 1.7 width. Uropod (Fig. 6) 0.3 pleotelson length. Protopod length 1.1 width, slightly broadened distally; endopod length 2.1 protopod length, with 1 stout, and 1 simple distal seta; exopod 0.2 of endopod length and 0.3 width, with 2 stout, 1 broom and 3 simple distal setae. Female (Fig. 2): Body similar to male, slightly broader, length 2.25 width of pereonite 5. Head length 0.5 width, rostrum length 0.8 head length. Rostrum width subequal to length, width 2.8 antennular basal article. Pereonite 1 almost as wide as head, shortest laterally and longest medially, pereonites 2 – 4 slightly broader and laterally almost twice as long as pereonite 1. Natasome length 0.7 body length, width 1.4 head width. Pleotelson length 0.9 width, 0.3 body length, preanal ridge shorter than in male, not bent, rounded terminally. Antennula (Fig. 2) incomplete, article 1 length 1.3 width, with 1 dorsal broom seta and 1 small medial seta, article 2 0.5 length and 0.4 width of article 1, with 2 distal broom setae; article 3 length 0.5 of article 2. Pleopods (Fig. 2): Pleopod 2 (Fig. 2 B, D) as long as wide, diamond-shaped in ventral view and conical in lateral view, covering anus, reaching apex of pleotelson, distal projection angled like pleotelson posterolateral margin, ventral tip of cone in midlength, height 0.6 length, distolateral margins with about 14 plumose setae on each side. Pleopod 3 endopod twice as long as protopod, length 1.2 width, distal plumose setae length 0.5 endopod width; exopod 1.3 length and 0.3 endopod width, distal article separated, length 0.5 basal article length. Pleopod 4 endopod length 1.4 width, exopod length 0.9 endopod length, distal plumose seta half as long as exopod. Pleopod 5 length 1.3 width. Juveniles. In spite of the fact that both juvenile specimens have an operculum, shape and size of antennula and preanal ridge already indicate the future sex of the juveniles. The articles of the male antennula are stouter in comparison with those of the female, and the preanal ridge of the male is more pronounced. Body (Fig. 3) length / width of pereonite 5 2.1 in female and 2.25 in male. Antennula of juvenile male (Fig. 3) article 1 length 1.3 width, article 2 0.6 length and 0.5 width of article 1, with 2 distal broom setae; article 3 length 0.5 of article 2, article 4 length 0.6 article 3 length, article 5 as long as article 1 and as broad as article 2, article 6 as long as article 4, following 4 articles shorter than article 4, last two articles elongate, each with distal aestetasc. Antennula of juvenile female more slender than of male. Pereopods 1 – 4 of juvenile male (Fig. 7): pereopod 1 length 0.8 body length, length ratios of ischium – dactylus to basis: 0.2, 0.15, 1.1, 0.8, 0.6; basis length 5.9 width, with sparse simple setae; ischium length 1.7 width, without setae; merus length 1.2 width, with 4 distal setae; carpus length 11.4 width, with 1 dorsal and 2 ventral setae; propodus length 9.6 width, without setae; claw length 0.2 dactylus length. Pereopod 2 the most stout and setose among ambulatory pereopods, length 1.25 pereopod 1 length, length ratios of ischium – dactylus to basis: 0.5, 0.2, 1.4, 1.1, 0.6; basis length 5.2 width, with 3 dorsal setae, ischium length 2.6 width, with 2 small ventral setae; merus length 1.7 width, with 3 distal setae; carpus length 14.8 width, with 7 ventral sensory spines and 4 dorsal setae; propodus length 13.8 width, with 7 ventral sensory spines and 1 stout and 1 distodorsal broom seta; dactylus length 11.0 width, claw length 0.2 dactylus length. Pereopod 3 length 1.15 pereopod 1 length, length ratios of ischium – dactylus to basis: 0.3, 0.2, 1.3, 0.9, 0.45; basis length 7.8 width, with 3 small ventral setae, 1 broom and 3 small dorsal setae; ischium length 2.0 width, merus length 1.7 width, carpus length 17.3 width, with 1 distodorsal seta; propodus length 12.0 width, with 4 ventral, 1 dorsal seta and 1 distodorsal broom seta; dactylus length 8.7 width, claw length 0.3 dactylus length. Pereopod 4 not complete, length ratios of ischium – carpus to basis: 0.3; 0.25, 1.3, basis length 6.0 width, with 1 dorsal broom seta and 1 simple seta; ischium length 2.3 width, with 2 small ventral setae; merus length 1.9 width, carpus length 11.8 width, with 6 ventral setae. Pereopod 4 of juvenile female: length ratios of ischium – dactylus to basis: 0.4, 0.25, 1.2, 1.1, 0.7; basis length 5.3 width, with 2 broom and 4 small dorsal setae; ischium length 2.3 width with 4 ventral setae, merus length 1.9 width, with 1 distodorsal and 2 ventral setae; carpus length 17.4 width, with 1 dorsal and 4 ventral setae; propodus length 16.2 width, with 1 ventral 3 dorsal setae and 1 distodorsal broom seta; dactylus length 13.7 width, claw length 0.2 dactylus length. Pereopods 5 – 7 (Fig. 7) of juvenile male: Pereopod 5 length 0.8 pereopod 1 length, length ratios of ischium – dactylus to basis: 1.05, 0.6, 1.8, 0.85, 0.8; basis length 2.3 width, with 2 small dorsal and 1 distoventral setae; ischium length 2.8 width, with 3 small ventral and 3 stout plumose dorsal setae; merus length 1.6 width, with 1 stout dorsal seta; carpus length 1.5 width, with 15 long dorsal and 5 shorter ventral plumose setae; propodus length 1.7 width, with 5 ventral and 6 dorsal plumose setae and 2 spine-like distodorsal setae; dactylus length 5.3 width, claw tiny. Pereopod 6 similar in shape to pereopod 5, but slightly larger, length 1.1 pereopod 5 length, length ratios of ischium – dactylus to basis: 0.95, 0.4, 1.5, 0.7, 0.6; basis length 2.8 width, with 1 small dorsal and 1 long distoventral seta; ischium length 3.3 times width, with 3 ventral setae; merus length 1.5 width; with dorsal stout seta and small ventral seta; carpus length 1.5 width, with 16 long and 1 stout simple dorsal setae and 6 ventral plumose setae; propodus length 1.5 width, with 5 ventral and 5 dorsal plumose setae and 2 spine-like distodorsal setae; dactylus length 4.1 width, claw tiny. Pereopod 7 not completely developed, length 0.4 pereopod 5 length, length ratios of ischium – dactylus to basis: 0.6, 0.5, 1.7, 1.1, 0.8; carpus length 1.6 width.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	discussion	Remarks. B. grasslei sp. nov. differs from the two known species, B. parvus and B. latifrons by having longer sutures between pereonites 5 and 6, and a more conical shape of the female pleopod 2 with central position of the tip. B. grasslei sp. nov. is most similar to B. parvus. The differences from the latter are the following: in B. grasslei sp. nov. the triangular medial lobes of the distal margin of the male pleopod 1 are slightly longer than the lateral ones in contrast to the truncate medial lobes of B. parvus which are shorter than the lateral ones; the medial lobe of the maxilliped palp article 4 is slightly narrower than that in B. parvus.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF8A8519FF5C512A1B3B2412.taxon	distribution	Distribution. The species is only known from the type locality: the eastern slope of the Weddell Sea, 2149 m depth.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF83851DFF5C57571B4424D3.taxon	materials_examined	Material examined. Holotype. male (2.0 mm), ZMH K- 42037, ANDEEP III St. 80 – 9 – E, 23 February 2005, 70 ° 38.45 ’ – 39.18 ’ S, 14 ° 42.86 ’ – 43.43 ’ W, 3100 m. Paratypes. ZMH K- 42038, juvenile specimen (1.2 mm), same data as holotype.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF83851DFF5C57571B4424D3.taxon	etymology	Etymology. The species is named after marine biologist Michael Stoddart from Tasmania who has established and implemented the Census of the Antarctic Marine Life (CAML) within SCAR (Scientific Committee of Antarctic Research).	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF83851DFF5C57571B4424D3.taxon	description	Description. Body (Fig. 8) with fingerprint pattern on strong cuticle. Body length 2.4 width, height 0.35 length. Head length 0.4 width, length behind antennula insertion 0.2 antennula article 1 length; rostrum length 0.9 head length. Rostrum terminal width 0.7 basal width, rostrum basal width 2 times basal width of antennula. Cephalic keel expressed, clypeus 1.6 as wide and 0.5 as long as labrum. Pereonite 1 shortest laterally, longest medially, slightly broader than head, length 3.3 head length behind antennular insertions, pereonites 2 – 4 1.2, 1.3 and 1.3 times longer laterally than pereonite 1 respectively, anterior lobes of coxae of pereonites 1 – 4 not pronounced in dorsal view, with 2 lateral setae each. Natasome length 0.7 body length, width 1.3 head width; pereonite 5 lateral length equal to lateral length of pereonites 6 and 7 together; pereonites 6 and 7 of same length laterally. Lateral sutures between pereonites 5 and 6 equal in length to fused middle part, ventral bump of pereonite 5 with setae. Pleotelson slightly shorter than wide, length 0.3 body length, preanal ridge rather short, not projected backwards, rounded terminally, shorter than uropodal protopod. Antennula (Fig. 10) incomplete; article 1 reaching 0.7 rostrum length, length 1.3 width, with 1 distal broom seta, article 2 0.6 as long and 0.5 as wide as article 1; article 3 length 0.75 article 2 length, article 4 length 0.5 article 3 length. Antenna incomplete (Fig. 8): article 1 shortest, articles 2 – 4 subequal in length, scale on article 3 slender, half of article 4 length. Left mandible (Fig. 9) pars incisiva with 5 cusps; lacinia mobilis slender, length 0.7 pars incisiva length, with 4 teeth; spine row with 7 spines; condyle length 0.6 molar length; palp strong, slightly longer than mandibular body, width equal to distal molar process width, article 1 with 1 small distal seta, article 2 length 1.7 article 1 length, with 1 strong distal and 2 smaller lateral setae; article 3 weakly curved, with 1 long distal seta and row of smaller lateral setae. Maxilla 1 (Fig. 9) lateral endite 1.3 width of mesial endite, 2 inner spine-like setae distally serrated. Maxilla 2 (Fig. 9) mesial endite longest, lateral and middle endites subqual in length, middle endite with 2 equally long and 2 equally short distal setae, lateral endite with 2 equally long setae, 1 slightly shorter seta and 1 short inner seta distally. Maxilliped (Fig. 9) basis length 3.1 width, endite with 3 coupling hooks, distal margin with numerous slender setae, 2 broad fan and 2 serrated stout setae; palp inserted after 0.5 length of basis; palp article 2 lateral margin slightly convex, medial margin strait, both with 1 distal seta, lateral length 1.2 medial length, article 3 slightly shorter medially than article 2, medial margin slightly convex, dentate, with 8 setae; article 4 longer than article 3 laterally, medial lobe almost reaching article 3 medial margin, lobe width 2.4 article 5 width, medial margin with 7 setae; article 5 equal in length to article 4 laterally; with 1 lateral and 3 distal setae. Epipod slightly shorter than basis, length 3 width. Pereopods incomplete, bases only (Fig. 10 B). Pereopod 1 basis shortest, bases 2 - 4 of the same length, subequal to height of pereonites 1 and 2. Pleopods (Fig. 10): Male pleopod 1 length 2.8 width, distal margin almost not bent ventrally, medial lobes rounded, slightly longer and narrower than triangular lateral lobes, each with 4 distal setae. Pleopod 2 protopod length 1.7 width, distolateral part enlarged, bent dorsally with ventral keel bearing 4 small setae, distolateral margin with 7 – 8 setae, stylet length 0.4 protopod length, sperm duct open at midlength of stylet; exopod slender, width 0.3 endopod width. Pleopod 3 protopod half as long as endopod, endopod length 1.2 width, distal plumose setae length 0.7 endopod width; exopod 1.4 as long and 0.2 as wide as endopod, with many tiny simple lateral setae and distal simple seta, distal article length 0.4 proximal article length. Pleopod 4 endopod length 1.5 width, exopod 0.4 as wide and as long as endopod, distal plumose seta length 0.4 exopod length. Pleopod 5 length 1.9 width. Uropod (Fig. 10) length 0.15 pleotelson length. Protopod length 1.3 width, with 1 distolateral and 4 distomedial setae, endopod length 3.8 width, and 1.5 protopod length, with 2 spine-like sensory setae and 4 simple distal setae; exopod 0.5 of endopod length and width, with 1 spine-like sensory and 3 simple small distal setae.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF83851DFF5C57571B4424D3.taxon	discussion	Remarks. Belonectes stoddarti sp. nov. differs from other species of the genus by the expressed fingerprint pattern of the cuticle and the shape of the distal margin of the male pleopod 1: the medial lobes are narrow, rounded and slightly longer than the broad triangular lateral ones. The medial lobe of maxilliped palp article 4 of the new species is the broadest in comparison with that in other species: in B. stoddarti its width is 2.4 of article 5 width, whereas in B. parvus this ratio is 2.2 and in B. grasslei – 1.3. B. stoddarti sp. nov. has a relatively long exopod: the length ratio of endopod / exopod is 0.5 in B. stoddarti, in B. parvus it is 0.25 and in B. grasslei it is 0.20.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF83851DFF5C57571B4424D3.taxon	distribution	Distribution. The species is only known from the type locality: the eastern slope of the Weddell Sea, 3100 m depth.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF878500FF5C54691F5124F4.taxon	materials_examined	Material examined. Holotype, male (2.1 mm) (ZMH K- 42039), ANDEEP III St. 81 – 8 – S, 24 February 2005, 70 ° 31.08 ’ – 32.23 ’ S, 14 ° 34.82 ’ – 14 ° 34.90 ’ W, 4382 m.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF878500FF5C54691F5124F4.taxon	etymology	Etymology. The species is named after marine biologist, Dr. Paul Dayton for his important contributions to Southern Ocean benthic marine biology.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF878500FF5C54691F5124F4.taxon	description	Description. Body (Fig. 11) length 2.4 width of pereonite 5, body height 0.3 of body length. Head length 0.45 width, rostrum length 0.95 head length. Rostrum width subequal to length, and 1.6 antennula basal width. Cephalic keel weakly expressed, clypeus 1.6 as wide and 0.5 as long as labrum. Pereonite 1 almost as wide as head, length 3.5 head length behind antennula insertion; pereonites 2 – 4 slightly broader, almost twice as long as lateral margins and slightly shorter medially than pereonite 1, anterolateral margin of pereonites 1 – 4 acute in dorsal view; coxae anterior projection acute in dorsal view. Natasome length 0.75 body length, width 1.3 head width; pereonite 5 lateral length 0.9 lateral length of pereonites 6 and 7 together. Lateral sutures between pereonites 5 and 6 rather long: fused middle part 0.4 of pereonite 5 width. Pleotelson length 0.9 width, 0.3 body length, preanal ridge short, triangular, shorter than uropodal protopod. Antennula incomplete (Fig. 11) article 1 nearly reaching end of rostrum, length 1.3 width, with 2 small medial setae, article 2 0.4 length and 0.5 width of article 1, with 1 distal broom setae. Antenna incomplete (Fig. 11): articles 1 – 4 subequal in size, scale on article 3 small. Left mandible (Fig. 12): pars incisiva with 5 cusps; lacinia mobilis length 0.7 pars incisiva length, with 5 teeth; spine row with 7 spines; condyle length 0.6 molar process length; palp length 1.05 mandibular body length, article 1 without setae, article 2 length 1.5 article 1 length, with 1 stout distal seta, article 3 with row of lateral setae and long distal seta. Maxilla 1 (Fig. 12) lateral endite width 1.6 mesial endite width, with 12 distal spine-like setae, longest distolateral seta slightly longer than endite width. Maxilla 2 (Fig. 12) lateral endite with 2 long, 1 shorter and 1 small distal (most medial) setae, medial endite shortest, mesial endite longest, slightly narrower than both other endites together, with 7 strong and numerous slender distal setae. Maxilliped (Fig. 12) basis length 3.4 width, endite length 0.4 basis length, width 0.7 basis width, with 2 coupling hooks, distal margin narrow, slightly concave, with some simple slender setae and 3 stout fan setae; palp article 2 width 1.2 endite width, lateral margin slightly convex, length 1.4 medial margin length; article 3 subequal to article 2 in medial length and width, medial margin rounded, extended, with 8 setae; articles 3 – 5 subequal in length laterally, medial lobe of article 4 1.4 times longer and twice as broad as article 5, with 5 distal setae; article 5 with 1 lateral and 3 distal setae. Epipod length 3.4 width, 0.95 basis length, with fine distal setae. Pleopods (Fig. 13): Pleopod 1 length 2.9 width, deeply keeled in midlength, depth 0.2 length, distal margin: medial lobes rounded, with 4 small setae each, lateral lobes visibly longer than medial lobes, slightly acute distally. Pleopod 2 protopod length 1.8 width, distolateral part enlarged, bent dorsally with ventral keel, lateral margin with 8 rather short plumose setae, stylet length 0.5 protopod length, sperm duct opening at midlength of stylet; exopod slightly narrower than basal article of endopod, inserted on 0.3 of protopod length from distal margin. Pleopod 3 endopod length 1.4 width, distal plumose setae length about half of endopod width; exopod 1.1 length and 0.2 width of endopod, distal article length 0.7 basal article length. Pleopod 4 endopod length 1.6 width, exopod length 0.8 endopod length, distal plumose seta half as long as exopod. Pleopod 5 length 1.7 width. Uropod not complete (Fig. 11) Protopod length 1.1 width, slightly broadened distally; endopod broken, exopod 0.6 of protopod length, with 3 distal setae.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF878500FF5C54691F5124F4.taxon	discussion	Remarks. Belonectes daytoni sp. nov. differs from other species of the genus by having a larger basal article of the antennula, which almost reaches the distal margin of the rostrum, and is 0.6 times as wide. The shape of the distal margin of the male pleopod 1 also distinguishes the new species: the medial lobes are rounded and shorter than the lateral lobes (in B. stoddarti the medial lobes are longer than the lateral ones, in B. grasslei they are more triangular and subequal to the lateral ones, in B. parvus the medial lobes are truncate and as long or shorter than the lateral ones, in the illustration of distal part of pleopod 1 of B. latifrons (Menzies and George, 1972, p. 9.63) the lobes are not separated, probably of the same length. The shape of the pleopod 2 protopod is similar to that of B. stoddarti, but differs by a smaller distolateral lobe; the lateral plumose setae of the protopod are shorter and the exopod is relatively larger than in B. stoddarti. Article 3 of the maxilliped palp in B. daytoni sp. nov. has a more convex medial margin than that in B. stoddarti, and the medial lobe of article 4 is narrower than that in B. parvus.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
03B78785FF878500FF5C54691F5124F4.taxon	distribution	Distribution. The species is only known from the type locality, the Weddell Sea, 4382 m depth.	en	Malyutina, Marina V., Brandt, Angelika (2009): Description of three new species of the deep-sea munnopsid genus Belonectes (Crustacea, Isopoda, Asellota) from the Weddell Sea, Southern Ocean. Zootaxa 2277: 33-52, DOI: 10.5281/zenodo.191112
