286 



DECAPOD A. 



MACROURA. 



PALMMONID.V. 



VARYING HIPPOLYTE. 

 Hippolyte varians. Leach. 



Specific Character. Rostrum straight, acuminate above, with a spine near the 

 base, and another at the apex ; beneath with a sharp two-toothed carina. Anten- 

 nal scale with the external tooth one-third from the extremity ; internal antennae 

 with the thick filament only slightly curved. 



Hippolyte variant, LEACH, Edinb. Encycl. VIII. p. 432. Trans. Lin. Soc. XI. 

 p. 347. Encyc. Brit. Supp. I. p. 421. Malac. Brit. t. 

 xxxviii.f. 6-16. EDW. Hist. Crust. II. p. 371. 



THE carapace is less gibbous in this than in most other 

 species, although more so than H. pandaliformis, now 

 first described ; it is terminated by a straight and elon- 

 gated rostrum, which has on its upper side a tooth near 

 the base, and a very small one near the apex ; beneath 

 there is a short carina, which has two teeth : there is also a 

 small tooth on each side of the base of the rostrum, just over 

 the inner edge of the orbit. The scale of the external antenna; 

 is large, and a little longer than the rostrum ; its external 

 tooth is placed at the distance of about one-third from the 



