435 Canon A. M. Norman on British Isopoda. 



besides is to be seen, only a small triangular portion at the 

 back and a little piece at the rostrum (see tig. 2). More- 

 over, the eye so overhangs the front that this rostral portion 

 is hidden when the j^ga is viewed from above. The entire 

 surface of the body is closely microscopically punctated, 

 presenting under the microscope a shagreened appearance, 

 besides which there are scattered punctuations of much larger 

 size. The hind margins of the segments of the metasome 

 are beaded (as in j^ga monophthalma) ; the terminal segment 

 is well rounded at the extremity, its margin serrated and 

 ciliated, its surface covered with minute spinules. The 

 superior antennae have the joints of the peduncle cylindrical. 

 The coxal plates of the first segment of the mesosome are 

 absent ; those of the three following segments are oblong in 

 form and abruptly truncated at their extremity ; those of the 

 following segments are more produced, their extremities 

 blunt ; nor are the epimera of the metasome sharply pointed. 

 The three anterior pairs of legs (see fig. 5) are almost entirely 

 devoid of spiny armature. The inner uropods are very broad, 

 widely truncated distally, with the outer corner slightly 

 produced, and are without any emargination of the outer 

 side ; both pairs of uropoda are serrated. 



Length 13 mm. 



A single female taken by the * Porcupine,* 1870, 8 miles 

 N.W. of Cape Sagres, Portugal, in 45 fathoms. 



Genus 2. Eocinela, Leach. 



=.Acherusia, Lucas, 



1. Eocinela danmoniensis, Leach. 



1851. ^f/a rotundicauda, Lilljeborg, ''Norges Crustaceer," CEfvers. K. 



Vet.-Akad. Forhaudl. p. 23. 

 1867. jRocinela danmotiiensis, Bate & Westwood, I. c. vol. ii. p. 291. 

 1873. ^ffa nasuta, Norman, in Wyville Thomson's ' Depths of the 



Sea,' p. 127, woodcut. 

 1879. Rocinela danmom'ensis, Schiodte & Meinert, I. c. p. 383, pi. xi. 



figs. 1-16. 

 1890. Rocinela da7imoniensis, H. J. Hansen, I. c. p. 298, pi. x. figs. 1-1 n. 

 1897. Rocinela danmoniejids, Ct. O. Sars, I. c. p. 65, pi. xxvii. 



Lat. 60° 39' N., long. 3° 9' W., 203 fathoms, and lat. 

 60° 45' N., long. 3° 6' W., 250 fatlioras, i. e. west of the 

 Shetland Isles (' Porcupine,' 1869, Stats. 74, 75). I have 

 taken it on the West Norwegian coast in the Bergen and 

 Hardanger Fiords. 



The next species is very closely allied to the present ; the 

 chief point of difference is that in R. danmoniensis the eyes 



