232 AMI'UIPODA NOUMALIA. 



peiluncle longer than flagcllura, fourth joint of peduncle longest. 

 Propodos of first pair of gnatliopoda small, slightly broader at 

 apex, and oblique : propodos of second pair moderately large, sub- 

 ovate, base below sparsely setose, palm not excavate, dactylos 

 rather short. Three posterior paii-s of pereiopoda not long, slightly 

 longer from the third to the fifth pair, sette short, basa veiy broad. 

 Penultimate pair of pleopoda hardly reaching as far as the fii'st. 

 " Length 5-G lines. 



** Hah. Island of San Lorenzo, Pern, among sea- weed along the 

 sea-shore." — Dana. 



14. Megamcera Indica. (Plate XL. fig. 9.) 

 Gammarus ? Indicus, Dana, U. S. Explor, £xped. p. 961. pi. 66. f. 4. 



" Female. — Coxce of moderate size. Fourth segment of pleon acute 

 behind. Superior antennoe twice longer than the inferior, a little 

 shorter than the body ; peduncle shorter than the fiagellum, fii-s 

 joint the longest ; setse numerous, rather short. Inferior antennae 

 slender, but little longer than peduncle of superior pair, base 

 hardly longer than fiagellum. Propoda of first and second pairs 

 of gnathopoda small, oblong, above nearly straight, narrowing to 

 apex, hirsute below ; dactylos of moderate length. First and 

 second pairs of pereiopoda slender, hardly shorter than third; 

 fourth and fifth subequal, longer than third ; basa very broad ; 

 setos short, excepting the apical, which are long. Posterior pleo- 

 poda hardly extending beyond penultimate pair. 



" Length 4 lines. 



" Hab. Shores of a small coral island in the Balabac Passage, north 

 of Borneo. Collected February 1842." — Dana. 



