CRUSTACEA FROM THE BAHAMAS 93 



6i. Alpheus saulcyi Guerin 

 Gu6rin, in Hist, du Cuba, 1857. 

 Herrick, Memoirs Nat. Acad. Sci., Vol. V, p. 381. 

 {a) 5 specimens, from green sponges, Feb., 1890. 

 {b) I specimen, near Nassau, Feb. 5, 1890. 

 (c) I specimen, J , from green sponge. 

 {d) I specimen, from sponge, March i, 1890. 

 (e) I specimen, from sponge, March i, 1890. 

 (/) 2 specimens, Nassau, N.P., Jan., 1890. 

 Range : West Indies. 

 Found at Nassau, Martinique. 



62. Athanas ortmanni n. sp. (PI. xxx. Fig. 7) 



(a) I specimen. Along shore, near Nassau, N.P., Feb. 20, 1890. 



Rostrum slender and pointed, reaching a little beyond the second 

 joint of peduncle of inner antennas. Antero-lateral margin of carapace 

 extends obliquely backward, prolonged in front of eye into minute 

 spine. Eye-stalk short, not projecting beyond carapace. The eye is 

 seen through the somewhat transparent carapace as in Alpheus. 

 Inner antennae, with stylocerite reaching to distal end of second seg- 

 ment of peduncle. From the peduncle arise two flagella of nearly 

 equal length, the upper somewhat more slender than the lower, bearing 

 on the fourth segment from base a minute, subsidiary fiagellum. 



Outer antennae with scaphocerite nearly as long as the peduncles of 

 inner antennae, broad and fringed with hairs. Third pair of maxilli- 

 pedes reach slightly beyond the distal end of scaphocerite. 



First pair of pereiopods: that on the right side is robust with 

 swollen chela, terminating in slender hooked fingers which are minutely 

 serrated on the opposing edges. Margin of chela entire, length 5 mm., 

 breadth 2.5 mm. Carpus short. Distal end of meros reaches to 

 extremity of third pair maxillipedes. Left chelapod lacking. 



Second pair of pereiopods slender, with very small chelae. Carpus 

 five-jointed ; proximal segment equal in length to the four distal seg- 

 ments. Remaining three pairs of pereiopods similar to each other and 

 equal in length to the second pair; Pleopods narrow and biramous. 

 Telson narrow and compressed, with smooth margins. Uropods 

 slightly longer than telson. 



