120 



OKHAMANDAL MARINE ZOOLOGY REPORT 



external crest. The palm is broad and round, outer surface of hand not serrate. 

 Fingers acute, curved and shorter than the palm, with a small hiatus between them 

 when closed. Ambulatory legs missing. Colour in spirit : dirty milky white. 



Locality : — South of Chindi Reef, Gulf of Kutch, 6-10 fathoms. 



It is a Floridian and West Indian species, but has also been recorded by the 

 Challenger, and from the Ceylon Pearl Banks. 



Petrolisthes, sp. 



A damaged specimen in the collection is referred to this genus. Carapace 

 slightly longer than broad, a little compressed, surface marked with pubescent striae, 

 the hairs being short. Lateral margins entire, and slightly hairy. Superior orbital 

 border straight, with a blunt external orbital projection. Rostrum prolonged deflexed, 

 with a shallow median furrow, and the edges crenulate. Eyes large. Eye-peduncles 

 short. Antennules minute. First joint of antennal peduncle reaching beyond margin 

 of carapace. Chelipedes absent. Ambulatory legs short. Merus broad. 



Length of carapace, 5 mm. ; breadth of carapace, 5 mm. 



Colour in formalin : milky white. 



Locality : — South-west of Beyt Island. 



Galathea, Fabrioius. 



Galatea. — Leach (23), Desmarest 

 (8), Latreille (22), De Haan (13), 

 Stimpson (34), Haswell (14). 



Galathea. — Fabricius (11), Milne- 

 Edwards (9), Dana (7), Heller (16). 



Rostrum flattened, and of moderate breadth, with the margins usually spinose. 

 Carapace with pubescent transverse striae, the surface usually unarmed, with the 

 exception of the anterior gastric area. The cardiac area not prominent. Abdominal 

 segments unarmed. 



The members of this variable genus are usually confined to shallow water, 

 where they live symbiotic on crinoids, or amongst coral, or on the surface and 

 crevices of rocks. They swim backwards by curious movements of the tail. 



The genus is more or less cosmopolitan. 



Galathea elegans, White. — Plate, fig. 11. 



Adams and White (1), Henderson (19), Miers (27). 



Rostrum very long, and acute, two -thirds the length of the carapace and armed 

 with seven small teeth on each side. Carapace and abdomen covered with a continuous 

 series of pubescent striae, and rather more than half as broad as long (including 

 the rostrum). Lateral margins of the carapace armed with about eight teeth. 



