28 CAIU. HOVALLIUS, AMPHIPODA HYPEKIIUEA. 



closely allied to Lanceola pelagica Say, and at the same time I claimed the generic name 

 Lanceola for these animals as the true name due to them. 

 Only one genus is hitherto known. 



Genus 1. LANCEOLA, TH. SAY, 1818. 



Diagn. Caput ante excavatum multo brevius quam altius. Pedes pereii primi et secundi parium sim- 

 plices non chelati. Pedes tvium parium uUimorum metacarpis excavatis dactylisque re- 

 tractilibus. Epimera distincta. Pedes uri curti lati robusti, ramis binis liberis, ut in Hy- 

 peria. Telson maximum lingulatum. 



The head is excavated anteriorly, much deeper than long. The first and second pairs of pereio- 

 poda simple, not cheliform. The last three pairs with the ends of the metacarpi hollowed 

 and the dactyli retractile. The epimerah are distinct. The uroj)oda are short, broad, ro- 

 bust, each with two free rami, as in Hyperia. The telson is very large, tongue-shaped. 



Syn. 1818. Lanceola, TH. SAY. — »An account of the Crustacea of the United States». 



Journal of the Academy of Natural Sciences of 



Philadelphia. Vol. I, part. 2, p. 317. 

 » » C. BovALLiDS. 1885. On some forgotten genera among the Amphipodous 



Crustacea». Bih. t. K. Sv. Vet. Akad. Handl. 



Bd. 10. N:o 94, p. 3. 

 » » » 1887 . »Arctic and Antarctic Hyperids». Vega-Exp. Vetensk. 



Iakttagelser. Bd. 4, p. 553. 



A. The sixth pair of pereiopoda are longer than the pereion. 



a 1. The seventh pair of pereipoda are as long as the fourth pair. 1. L. pelagica. 



a 3. The seventh pair of pereiopoda are shorter than the fourth pair. 



aa 1. The fifth pair of pereiopoda are much shorter than the sixth. 



aaa 1. The telson is longer than the peduncles of the last pair of 



uropoda 3. L. Sayana. 



aaa 2. The telson is shorter than the peduncles of the last pair 



of uropoda 3. L. serrata. 



aa 2. The fifth pair of })ereiopoda are almost as long as the sixth pair 4. L. Loréni. 



B. The sixth pair of pereiopoda are shorter than the pereion. 



b 1. The fourth pair of pereiopoda are much shorter than the sixth 5. L. felina. 



b 2. The fourth pair of pereiopoda are as long as, or longer than, the sixth pair 6. L. Clausii 



