Atlantophila cristata (Miers, 1881) n. comb.

(Figs 2E; 6)

Philyra cristata Miers, 1881: 263, pl. 15 fig. 1; 1886: 321. — Rathbun 1900: 298. — Balss 1921: 53. — Monod 1956: 144, figs 177-183. — Longhurst 1958: 87. — Rossignol 1962: 115. — Forest & Guinot 1966: 56. — Manning & Holthuis 1981: 66.

TYPE MATERIAL. — Syntypes: Senegal. Gorée I., purch. Hermann Maltzan, 2 ♂♂ cl 4.3, 5.7 mm, 1 ovig. ♀ cl 6.0 mm (NHM 1881.24) (the ♂ cl 5.7 mm is here designated as the lectotype and the remaining specimens are now considered to be paralectotypes) .

MATERIAL EXAMINED. — Senegal. Dakar, 7.5-9.5 m, 8.IV.1952, coll.G. Thorson, 1 ♂ cl 5.1 mm, 1 ♀ cl 6.2 mm (ZMK 4254). — Joal, 10-11 m, 20.II.1953, 2 ♂♂ cl 5.2, 5.5 mm (MNHN B.17000). — Calypso, Gulf of Guinea, 1956, 5 m, 1 ovig. ♀ cl 4.8 mm (MNHN B.16997). — Between Tamara and Île de Corail, 16.III.1953, 12 m, coll. J. Forest, id. T. Monod, 2 ♂♂ cl 4.8, 5.5 mm, 6 ovig. ♀♀ cl 4.5-5.1 mm (MNHN B.16998). Guinea. Iles de Los, nr Roume I., 1910, 10 m, coll. A. Gruvel, id. E. L. Bouvier, 1 ♂ cl 4.2 mm (MNHN B.16999). — Guinean Trawling Survey, La Rafale stn 12, 15 m, 3.IV.1964, 1 ♂ cl 5.2 mm, 1 ovig. ♀ cl 6.3 mm, 1 juv. (MNHN B.24246).

São Tomé I. Calypso, 1956, 4 m, 1 ♂ cl 4.2 mm (MNHN B.17001). — Calypso, 1956, 0-2 m, 1 ♀ cl 4.3 mm (MNHN 17002). — Guinean Trawling Survey, La Rafale, Benin Bight, 4°57’N, 2°44’W, 5.X.1963, 20 m, 1 ovig. ♀ cl 5.9 mm (MNHN B.17005). — Guinean Trawling Survey, La Rafale, Benin Bight, 5°06’N, 3°22’W, 7.X.1963, 20 m, 1 ovig. ♀ cl 5.8 mm (MNHN B.17006).

DISTRIBUTION. — West Africa, from Senegal to Congo (Manning & Holthuis 1981: 66).

DESCRIPTION

Dorsal surface of carapace finely punctate anteriorly. Front truncate, nearly horizontal, straight. Anterior margin of efferent channel entire, straight,continuing into milled, lamellate, upcurved crest surrounding the carapace. Margin of epibranchial angle of carapace more prominently milled than antero- and posterolateral margin. Sternum smooth. Margin of posterior marginal crest milled, straight, visible in dorsal view. Anterior margin of abdominal sulcus minutely granulate.Fused male abdominal segments 2-6 lacking laterobasal knobs; median denticle distally. Margins of fused abdominal segments in female punctate. Cheliped merus with cristate, milled margins. Carpus with row of granules on inner lower and upper margins. Palm laterally convex, its upper and lower margins carinate, milled; fingers with outer margins carinate, inner margins denticulate, setose. Pereiopodal meri bearing two granulate lines on ventral and dorsal margins; carpi dorsally carinate, propodi dorsally and ventrally carinate. First male pleopod shaft coiled thrice on itself; apical process digitate, surrounded by rounded setose muff.

Colour

“Moins gris-plombé [than in A. laevidorsalis], parfois plus ou moins orangé, les pinces rose saumon.” (Monod 1956: 146).