Petrolisthes galathinus (Bosc 1801)

Petrolisthes galathinus (Bosc, 1802)

Porcellana galathina Bosc, 1802:231–233, pl. 6: fig. 2.

Petrolisthes galathinus.—Haig, 1960:36, pl. 19: fig. 4; 1962:175.—Leary, 1967:28 [and as P. sexspinosus].—Gore, 1974:702, 703 [table], 712.—Rickner, 1975:164.

MATERIAL EXAMINED.—PACIFIC. Panama City; 1 , 1 , ovigerous; 17 Feb 1969. Perlas Islands; 1 , 2 , ovigerous; 12–13 Jun 1973. ATLANTIC. Ft. Sherman; 7 5 , 2 ovigerous, 1 juvenile; 8 Feb 1969. Ft. Randolph; 1 , juvenile; 22 Apr 1969. Galeta Island; 3 , 4 , 1 ovigerous; 15 Jul 1969 and 11 Aug 1973.

MEASUREMENTS.—Males 3.0 × 2.8 to 11.0 × 10.0 mm; females 2.4 × 2.0 to 4.6 × 4.1 mm; ovigerous females 4.4 × 4.2 to 8.1 × 9.0 mm.

DISTRIBUTION.—In the Atlantic from Cape Hatteras to Brazil, including Gulf of Mexico. Pacific distribution records come from the vicinity of the Panama Canal, and from Costa Rica and Ecuador; from shore to 54 m.

Petrolisthes galathinus (Bosc, 1802)

Petrolisthes galathinus.—Haig, 1966:352.—Coêlho and Ramos, 1972:174.—Scelzo and Boschi, 1973:213 [listed].—Werding, 1977:176, 196, 201, 208, fig. 20; 1978b:219.

Petrolisthes palathinus.—Werding, 1977:208 [lapsus]. [Entire synonymy restricted to western Atlantic.]

MATERIAL EXAMINED.—COSTA RICA, Guanacaste, Playa del Coco (sta 1566), 1, 2 (1 ovigerous); PANAMA, Guarume Island (sta 2001), 1 ovigerous; Venado Beach (sta 1523), 1; (sta 1607), 4 3 ovigerous; W of Venado Island (sta 23-2), 1 (sta 54), 6, 5 ovigerous; Isla Venado (sta 86-1, 4), 15, 9 ovigerous, 3 dried specimens; (sta 88, 2, 4), 8, 3 (2 ovigerous); (sta 111-4), 1; (sta 132-1B, C), 3, 3 (1 ovigerous); Farfan (sta 56-1), 1 ovigerous; Fort Amador, Naos Island causeway (sta 1605), 1; Culebra Island (sta 28-2), 1, 1; Isla Perico (sta 82-B), 1, 2 ovigerous, 1 megalopa or early crab stage; Naos Island, “Scout” Island (sta 1711), 1, 2 (1 ovigerous); Panama City, Paitilla Beach (sta 52-1), 1, 1 ovigerous; Punta Paitilla (sta 53), 4, 4 (3 ovigerous); (84-B), 1; (sta 129-2B), 2; Panama Reef (sta 58-4), 1, 4 (3 ovigerous); Recife de Casa de Putas (sta 92-5), 1; (sta 166-1), 3, 4 ovigerous; Bay of Panama, Perlas Islands, Pedro Gonzales Island (sta 32), 1, 2, 1 megalopa; (sta 33-3), 1; PANAMA, Atlantic, Golfo de San Blas, Isla Mira (sta 94-3), 2; (sta 136-1B), 3 ovigerous; Portobelo, SW of Buenaventura Cove (sta 8-1), 1, 1 early crab; Galeta Island (sta 128-1), 4, 1, 1 juv; Limón Bay, Fort Randolph, Toro Point (sta 10-8), 1; (sta 147-3), 1; Fort Sherman, Devil's Beach (sta 127-1), 1 ovigerous; Canal Zone, Gatun Locks (sta 81-2), 1 ovigerous.

MEASUREMENTS.—Pacific specimens, 1.8 × 1.5 to 15.3 × 16.8 mm; smallest ovigerous, 4.7 × 4.5 mm; Atlantic specimens, 2.9 × 2.7 to 11.2 × 11.0 mm; smallest ovigerous , 4.4 × 4.3 mm.

DISTRIBUTION.—Western Atlantic from Cape Hatteras, Gulf of Mexico, Caribbean Sea to Brazil; eastern Pacific from Costa Rica to Ecuador; littoral to 54 m.