Narrative of Bahama Expedition. 211 



and has the branchial region covered above wilh well (htfer- 

 entiated swollen lobes of the carapace marked longitudinally 

 with furrows and lines resembling the midrib and veins of a 

 lanceolate leaf. The anterior part of the rostrum between 

 the eyes is much narrower than in (\ a^icm/niDii. and the car- 

 pus and meros of the cheliped are ornamented witli prominent 

 rows of spines at the angles. These crabs furnish a no insig- 

 nificant portion of the food of the natives, who hunt them at 

 night with torches. So completely terrestrial are they, that 

 they can easily be drowned in water. Another crustacean 

 that enters into the dietary of the Bahamans is the spiny lob- 

 ster, /^<?//////;v/5 Av/i,'7/;a'/ ;///,< .^. a truly gorgeous creature terrible 

 to look at because of its bristling spines, but like many another 

 with appalling mien, entirely harmless, being devoid even of 

 the claws so common ano.ig its fellows. 



A large series of Molhisca was secured in the \icinit\' of 

 Spanish Wells, embracing most of the more familiar West 

 Indian species. Here again we find considerable resemblance 

 to the fauna of the Dry Tortugas. The following list in- 

 cludes not only the forms collected by this expedition, but 

 also those secured in 1888. While there is no claim to exacti- 

 tude in the determinations, such as would attend the work of 

 a specialist in this group, it is hoped that the list as a whole 

 will serve to show the character of the collection, and the 

 general relationship of the forms, together with some hints of 

 value concerning the geographical distribution of the species 

 mentioned. Cephalopoda: Sp/nila pcroiiii Lam., a small 

 species less than an inch in diameter, with the whorls not 

 in contact with each other. Gastropoda: S/roiiibiis g/g'(is 

 Linn., JMiircx sp. (near J/, poiiniiu.) This is the largest 

 Miirex ionniS.. Triton chlorosfoiiius Lam.. I^asc/olan'a g-/o-aii- 

 tca Kiener. F. tiilipa Linn.. F. trapczliini: Purpura htviiia- 

 sioina Linn.. ColumhcUa mcrcatoria Linn., a pretty species 

 ornamented with rows of square brown spots; Cyphoiua gih- 

 bosa Linn., Cassis canico Stimp., a species highly prized as 

 specimens for the cabinet and called the •• queen conch " by 

 the natives; Doliiun pcrdix Linn., Oliva reticularis Lam., a 



