Chicoreus (Siratus) ciboney (Clench & Pérez Farfante, 1945)

Merle, Didier, Garrigues, Bernard & Pointier, Jean-Pierre, 2001, An analysis of the sculptural pattern of the shell in Caribbean members of Chicoreus (Siratus) Jousseaume, 1880 (Gastropoda, Muricidae), with description of a new species, Zoosystema 23 (3), pp. 417-431 : 428-429

Chicoreus (Siratus) ciboney (Clench & Pérez Farfante, 1945)

( Figs 3 B-D; 4C; 6A; 8A; 9E)

DESCRIPTION

C. (S.) ciboney differs from C. (S.) guionneti n. sp. and the other studied species in having a multispiral protoconch of three whorls ( Fig. 8A ), suggesting a planktotrophic larval development. C. (S.) ciboney has thicker primary and secondary cords ( Fig. 3 B-D), developed but low intervarical nodules ( Fig. 6A ) which are present on the strongest secondary cords (s3, s4), shorter or absent spines in the adult morphology ( Fig. 6D ), and denticles within the outer lip. This species occurs from Cuba to Lesser Antilles in 200 to 300 meters deep.

Chicoreus (Siratus) perelegans Vokes, 1965 ( Figs 2 A-C; 4A; 6B; 8D; 9H)

DESCRIPTION

C. (S.) perelegans is characterized by the association of thick primary and secondary cords s3, s4 ( Fig. 2 A-C), the absence of intervarical nodules ( Fig. 6B ), short or absent spines, only two intervarical ribs, and stronger inner denticles of the outer lip than in C. (S.) guionneti n. sp. This character association is not found in C. (S.) guionneti n. sp. C. (S.) perelegans is reported from Haiti to Barbados between 80 and 120 meters deep.

Figures

FIG. 3. — Spiral sculpture (apertural view); A, Chicoreus (Siratus) consuela (Verrill, 1950), Port-Louis (coll. Lamy), seven whorls; B-D, C. (S.) ciboney (Clench & Pérez Farfante, 1945); B, Port-Louis (coll. Lamy), four whorls; C, Port-Louis (coll. Lamy), five whorls; D, Port- Louis (coll. Lamy), seven whorls. For A and D, the siphonal canal is not completely drawn. Abbreviations: see text. Scale bars: 5 mm.

FIG. 8. — Protoconchs and first teleoconch whorl; A, Chicoreus (Siratus) ciboney (Clench & Pérez Farfante, 1945), Port-Louis; B, C. (S.) guionneti n. sp., Martinique; C, C. (S.) cailleti (Petit de la Saussaye, 1856), Saba bank; D, C. (S.) perelegans Vokes, 1965, Port-Louis; E, C. (S.) articulatus (Reeves, 1845), Puerto Cortes; F, C. (S.) consuela (Verrill, 1950), Port-Louis. Abbreviations: see text. Scale bar: 1 mm.

FIG. 6. — Profile views of the intervarical nodules; A, Chicoreus (Siratus) ciboney (Clench & Pérez Farfante, 1945), Port-Louis (coll. Lamy), seven whorls; B, C. (S.) perelegans Vokes, 1965, Port-Louis (coll. Lamy), six whorls; C, C. (S.) consuela (Verrill, 1950), Port- Louis (coll. Lamy), seven whorls; D, C. (S.) articulatus (Reeves, 1845), Porto Rico (coll. Garrigues), seven whorls; E, C. (S.) formosus (Sowerby, 1841), Haiti (coll. Garrigues); F, C. (S.) guionneti n. sp., Martinique (paratype, MNHN); G, C. (S.) cailleti (Petit de la Saussaye, 1856), Saintes (coll. Lamy), seven whorls. Abbreviations: see text. Scale bars: 5 mm.

FIG. 2. — Spiral sculpture (apertural view); A-C, Chicoreus (Siratus) perelegans Vokes, 1965; A, Port-Louis (coll. Lamy), four whorls; B, Port-Louis (coll. Lamy), five whorls; C, Port-Louis (coll. Lamy), six whorls; D, C. (S.) consuela (Verrill, 1950), Port-Louis (coll. Lamy), six whorls. The siphonal canal is not completely drawn. Abbreviations: see text. Scale bars: 5 mm.