OAMMAUIDJ;. 87 



peduncle of the superior. First paiif. of gnathojioda liavinj^ the 

 prupodos short and narrow, that of the second pair of gnuthopoda 

 broad. r 



Length ? 



Uah. Greenland (Kmyer). 



13. HYALE. 



Ilvale, JRathke, Fauna der Krym, Mem. Acad. Imp. St. PHersb. iii. 

 '1837, p. 378. 



Superior antennae nearly as long as the inferior. Gnathopoda sub- 

 cheliform ; the propodos of the second paii' larger than of the first 

 in the male, and suhequal in the female, Thi-ee posterior pairs of 

 pereiopoda subequal. Posterior pair of pleopoda short, double- 

 branched. Telson simple, 



Dana has arranged this genus in his subfamily Lysianassinje. 

 Not having seen a specimen, I adopt the same arrangement ; but, 

 judging from the figure of the author, I should be inclined to classify 

 it near to Nicea of Nicolet, from which the female appears to differ 

 only in the posterior pair of pleopoda ha\Tng two branches — a 

 feature that the author has not aUuded to in the description of the 

 animal, although exhibited in the figure. It is this character, to- 

 gether with the absence of any mention whether the mandibles arc 

 furnLshed with an appendage or not, that has precluded my placing 

 it among the Okchestidje, 



1. Hyale Pontica. (Plate XIV. a. fig. 1.) 



Ilyale Pontica, Eathke, Fauna dor Krym, p. 378. tab. 5. f. 20-28. 

 Dana, U. S. Explor. Expcd. p. 910, note t. 



Mah. — Pereion compressed, imbricated. Eyes small and roimd. 

 Superior antenna; nearly as long as the inferior. Inferior antenna; 

 not reaching beyond the second segment of the pereion. First 

 pair of gnathopoda small ; second having the propodos large, 

 the palm slightly oblique, ciliated, notched near the dactylos, and 

 toothed at the inferior angle, where the apex of the dactylos im- 

 pinges, Pereiopoda subequal, spinous. Coxae of the third pair 

 not more than half as deep as the preceding. Three posterior 

 pairs of pleopoda having the peduncles much longer than their 

 respective rami ; the antepenidtimate reaching to the extremity 

 of the \dtimate. 



FemaU. — Differs from the male only in having the gnathopoda sub- 

 equal. 



Length ? 



Hah. Crimea {Ralhkc). 



