518 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



41. CORALLANA TRICORNIS Hansen. 



Corallana tricornis Hansen, Vidensk. Selsk. Skr. (6), V, 1890, pp. 879-381, pi. 

 VI, figs. 4-4p ; pi. VII, figs. 1-ld. 



Habitat. — Cape Catoche, Yucatan ; between Tampa Bay and Dry 

 Tortugas, Florida ; between Delta of the Mississippi and Cedar Kej^s, 

 Florida ; St. Thomas, West Indies ; St. Croix, West Indies : Jamaica; 

 British Honduras. 



Depth.— 24: to 27 fathoms. 



42. CORALLANA SEXTICORNIS, new species. 



Head in the male ornamented with four spines, forming two trans- 

 verse series of two spines each, the first being- small, the second two 

 very large and long, much longer than the first two and situated 

 behind them. The first antennae have the basal joint 

 large and dilated, with a spine projecting outward 

 from the inner exposed angle; the flagellum con- 

 tains eight joints. The second antennse with a fla- 

 gellum of nineteen to twenty-one joints reach the 

 Fig. qTIhead and posterior margin of the third thoracic segment. 

 FIRST THORACIC sEG- Thc hcad of the male is excavate above and deeplv 



MENT OF Corallana , i . j.i 1 1 i? j.i t 1 j? j? ^i ' 



SEXTICORNIS. sunken below the level of the dorsal surface of the 



body. The head of the female is unornamented, 

 with onl}' a slight indication of two small tubercles in the place where 

 the large spines are situated on the head of the male. The basal 

 joints of the first antennje of the female are large and dilated, but 

 without the prominent spine characteristic of the male. 



The first thoracic segment in the male is ornamented with two small 

 tubercles situated close together on the anterior portion. These 

 tubercles are wanting in the female. The posterior segments of the 

 thorax and the abdominal segments are densely tubercular. 



The terminal segment of the body is pointed posteriorly, and 

 fringed with hairs. The uropoda are about as long as the terminal 

 segment, the outer l)ranch narrow, the inner branch wide ; both are 

 fringed with hairs and armed with a few spines. 



One male and a number of females were collected by Henry Hemp- 

 hill at Key West, Florida. 



I}/^e.— Cat. No. 13540, U.S.N.M. 



43. CORALLANA QUADRICORNIS Hansen. 



Corallana qiiadrirornia Hansen, Vidensk. Selsk. Skr. (6), V, 1890, p. 382, pi. vii, 

 fig. 3. 



Hahitat. — St. Thomas, West Indies, 



