O.VMMARID.E. ] 7^5 



as lonjT as tho peduncle, first artieiilus as limp; as the last joint of 

 the peduncle, the rest irrei;-ularly long and sliort. " Fii-st pair of 

 p,iiathoi)oda small, having the carinis longer than the propodos ; 

 propodos ovate, palm imperfectly defined*." Second pair of gna- 

 tho])oda ha^-ing the carpus longer than the propodos ; propodos 

 fringed along the palm, or infero-anteiior margin, ^v^th a brush of 

 long hairs ; a similar Ijrush fringes to a less extent the inferior 

 margins of the meros and carpus. First pair of pemopoda having 

 the meros broad ; carpus about half the length and breadth of 

 the meros ; propodos long and narrow ; dactjlos slightly arcuate. 

 Second pair resembling the first. Third pair ha^•ing the basos 

 narrowest near the coxa, and dilated posteriorly towards the 

 distal extremity ; the meros distally enlarged, and the cari)us 

 postero-distall)- produced. Foui'th jiarr ha\'ing the basos nearly 

 disc-shape. The fifth Hke the foui'th, but longer. Posterior pair 

 of pleojioda longer than the preceding ; temiinal joint of the 

 longer rami one-thii'd the length of the first, and tipped with a long 

 spine-like hair. Telson having one side of each division straight, 

 the other arcuate, subapically tipped with a fasciculus of hairs. 

 Length ^ths of an inch. 



Huh. Weymouth (7Vo/.TFt7//rt?n.90H); Tenhy {Mr. WeUter); Wisby, 

 on a sandy bottom at fi-om IS to 24 fathoms, and Lanskrona (Lind- 

 strom). 



2. Bathyporeia Robertsoni, n. s. (Plate XXXI. fig. 5.) B.M. 



Male. — ^Eyes round. Superior antenna) longer than the peduncle of 

 the lower ; flagellum longer than the peduncle, articuli regular in 

 size, scarcely longer than broad, each carrying distally, short cUia 

 and a single auditory cilium of oval form ; secondary appendage 

 consisting of a single articulus as long as the fii'st four of the 

 flagellum. Inferior antenna) about half as long as the animal ; 

 flagellum about three timas as long as the peduncle, articuli 

 gradually increasing in length, each carrying a small oval cal- 

 ceola at the superior distal extremity. First pair of gnathopoda 

 (not made out). The rest of the animal appears to chfter in no 

 material degree from B. pilosa. 



Length about i of an inch. 



Bah. Cumbrae, near Glasgow, in the month of Fcbruaiy, in sand- 

 pools near low- water mark ; numerous, darting hither and thither 

 (Robei-t.son). It is named in compliment to the discoverer. 



» For this I am indebted to Liiidstrom's figure, the first pair of gnathopoda 

 in my ppccimcn being; wanting. 



