Rousettus Celebensis Andersen (1907)

Lengkong, Hanry Jefry, Arisoesilaningsih, Endang, Hakim, Luchman & Sudarto, 2016, Morphological Variations and New Species Description of Genus Rousettus; Bat from Gunung Duasudara Sanctuary, North Sulawesi, Indonesia, OnLine Journal of Biological Sciences 16 (2), pp. 90-101 : 95-96

Rousettus Celebensis Andersen (1907)

Holotype

Hanry Lengkong collected the specimens from Manado, Indonesia (HL) 111311 (field no. RC-1). It was caught on December 6 th, 2013, in moss vegetation, at 1.037 m above sea level, Gunung Duasudara Sanctuary , North Sulawesi, Indonesia (N 01031, 271 ’, E 125011, 169 ’). The specimens were adult male, unswollen testes, 44 grams BW. Skull and dentary were seperated then preserved in 70% alcohol.

Parasitype

Nine specimens were collected by Hanry lengkong from vegetations of moss forest, submontana forest, lowland forest, casuarine forest, coastal forest, shrub and grassland near the holotype location.

The specimens were:

• HL111312 (field no. RC-84), adult female, swollen nipples without bite marks, 41 grams BW, caught at 1.109 m above sea level (N 01031,115 ’, E 125011,093 ’)

• HL 111313 (field no. RC-94), adult male, slightly swollen testes), 95 grams BW, caught at 1.109 m above sea level (N 01031,115, E 125011,093 ’)

• HL111314 (field no. RC-129), adult female, unswollen nipples, 42 grams BW, caught at 996 m above sea level (N 01030,809 ’, E 125011,076 ’)

• HL 111315 (field no. RC-137), adult male, slightly swollen testis, 90 grams BW, caught at 712 m above sea level (N 01031,193 ’, E 125012,266 ’)

• HL 111316 (field no. RC-173), adult female, unswollen nipples, 55 grams BW, caught at 514 m above sea level (N 01030,872 ’, E 125013,516 ’)

• HL 111317 (field no. RC-190), adult male, unswollen testes, 75 grams BW, caught at 389 m above sea level (N 01030,620 ’, E 125013,201 ’)

• HL 111318 (field no. RC-198), adult female, unswollen nipples, 58 grams BW, caught at 1.351 m above sea level (N 01028,991 ’, E 125010,291 ’)

• HL 111319 (field no. RC-199), adult male, unswollen testes, 67 grams BW, caught at 1.345 m above sea level (N 01029,022 ’, E 125010,344 ’)

• HL 111320 (field no. RC-204), adult female, unswollen nipples, 56 grams BW, caught at 55 m above sea level (N 01033,429 ’, E 125009,359 ’)

Distribution

Those specimens found in Gunung Duasudara Sanctuary, North Sulawesi, Indonesia.

Diagnosis

R. celebensis has the biggest skull and external body characters. It is different from R. amplexicaudatus and R. tangkokoensis n. sp. since it possesses many larger characters despite represented only by the following skull characters, including: GSL of 37.30, ZB of 22.20, BCW of 14.48, MSF of 5.07, PL of 17.99, CBL of 35.41, CCL of 33.44, C 1 M 3 of 13.10, C 1 C 1 of 6.74, DL of 27.67, C 1 M 3 of 14.17, C 1 C 1 of 4.09 ( Table 1 ).

Description

All bats were described directly in Gunung Duasudara Sanctuary. R. celebensis specimen was compared with that of R. amplexicaudatus and R. tangkokoensis n. sp. ( Fig. 4 ).

Pelage

The color of shoulder pelage was brown to yellowish brown, chest to belly was slightly bright yellowish brown, neck was dark orange, top head was slightly dark yellowish brown. They had dense pelage around the thigh, hairy wings and no wing attaching onto the shoulder side.

External Body

R. celebensis had shorter SV, FA, TIB, HF and EAR than those in R. amplexicaudatus and R. tangkokoensis n. sp.; FL and TAIL are longer than those in R. tangkokoensis n. sp., but smaller than those in R. amplexicaudatus .

Skull

R.celebensis had longer GSL, ZB, BCW, BL, MSF, PL, CBL and CCL than those in R. amplexicaudatus and R. tangkokoensis n. sp.; meanwhile the LIW was larger than that in R. tangkokoensis n. sp. but smaller than that in R. amplexicaudatus ; POW was larger than that in R. amplexicaudatus but smaller than that in R. tangkokoensis n. sp.

Teeth and Dentary R. celebensis had longer C1M3, C1M3, C1C1, C1C1 and DL than those in R. tangkokoensis n. sp. and R. amplexicaudatus; the M 3 M 3, M 3 M 3 and RAP were bigger than those in R. tangkokoensis n. sp. but smaller than those in R. amplexicaudatus .

Biological Condition

Ninety adult males had reproductive condition (76 had unswollen testes, 3 had slightly swollen testes and 11 had swolllen testes) and 123 adult females had reproductive condition (76 had unswollen nipples, 9 had slightly swollen nipples and 20 had swollen nipples without bite marks, 9 had swollen nipples with bite marks and 9 pregnant).

Habitat

Two-hundred sixty-one individuals were caught one time in rainy and dry seasons by using bat nets at 1 and 3 m above the ground in moss forest, submontana forest, lowland forest, casuarine forest, coastal forest and shrub.

Figures

Fig. 4. Bat species: (a)Rousettus amplexicaudatus,(b) Rousettus celebensisand (c)Rousettus tangkokoensis n. sp.