257 

 Family Thaumastochelida. 



CaLOCARIS McANDREi-E, Bell. 



A fine living specimen of this species was dredged by the writer in 187?,. 

 in the Gulf of St. Lawrence, twenty miles to the south-west of the South- 

 West Point of the Island of Anticosti, in 190 fathoms, mud. 



Family Galatheidce. 

 MuNiDOPSis CURVIROSTRA, Whiteaves. 

 1874. Amer. Journ. Sc. and Arts, Third Series, vol. vii., p. 212. 



Munidopsis curvirostra. Fig. 1, side view of one of the types of this species, 

 in outline; fip. Iff, carapace of the same, as seen from above. Both 

 figures are about one and a lialf times the natural size. 



Original description of the genus and species. 



" Munidopsis curvirostra, nov. gen. et sp. External antenn?e about 

 equal in length to the carapace and its rostrum ; internal ones very short, 

 not reaching farther than about one-fourth the length of the beak. Eyes 

 rudimentary, longitudinally oval, light yellowish in colour ; cornea devoid of 

 facets. Carapace squarish, but longer than broad, with an outwardly 

 directed straight spine on each of the front angles. Upper surface of the 

 carapace granulate, hispid, transversely irregularly plicate. In the centre* 

 there are two dorsal spines, placed one above the other, but at some distance 

 apart. These, as are two similar spines on the tail segments, are all exactly 

 in a line with the rostrum, and the whole four point forward. Rostrum 

 simple (without the spine on each side of the base so characteristic of Mtinida) 

 conspicuously curved ujjward, stout at the base and gradually tapering to a 

 fine point. A single spine in the centre of the first and second tail segments, 

 the rest devoid of any. Anterior pair of legs about as long as, but not 



* Or, rather, — median line ; and in the next line, for " above " read — in advance of. 



17 



