Canon A. M. Noiinan on British Isopoda. 437 



pi. ii. figs. 11-19) describes and figures what he calls "the 

 adult male ^^ of Rocinela Dumerilii. It measured 20 mm., 

 but the front of the head, instead of having the character 

 which has just been described, is simple, as in immature 

 specimens. 



Genus 3. Syscenus, Harger. 

 = Harponya;, G. O, Sars. 



Syscenus infeliw, Harger. 



1880. Syseenus infelix, Harger, I. c. p. 387. 



1882. Harponyx ])ranizoides, G. 0. Sars, I. c. p. 60, pi. ii. fig. 1 (tlie 

 young). 



1883. Syseenus infehx, Harger, " Rep. Dredging ' Blake,' 1880, Iso- 

 poda," Bull. Mus. Comp. Zool. vol. xi. p. 100, pi. iii. figs. 5, 5 a, 

 pi. iv. figs. 3-3 h. 



1885. Rocinela Lilljehorgii, BovaUius, "New Isopod from the Coast of 

 Sweden," K. Svenska Vet.-Akad. Handl. vol. x. p. 1 (separate copy), 

 pis. i. & ii. 



1897. Syseenus infelix, G. O. Sars, /. c. p. 67, pi. xxviii. 



A fine specimen of this species, measuring 36 mm. long, 

 dredged by Sir John Murray in the ' Triton ' Expedition of 

 1882, is now before me. It was taken at Stat. 10, lat. 

 5U° 40' N., long. 7° 21' W., in 516 fathoms. This station is 

 in the warm area south of the Wyville-Thorason ridge, and 

 within the British Area. Two other specimens of the species 

 were given me by the describer, Mr. Harger ; tliey were 

 taken off Martha's Vineyard, N.E. America, in 1882, in 

 640 fathoms. 



Fam. Cirolanidae. 

 Genus 1. CiKOLANA, Leach. 



1. Cirolana horeah's, Lilljeboi'g. 



IS.'il. Cirolana borcalis, lAWlohovg, '' Norges Crustaceer," (Efvers. K. 



Vet.-Akad. Handl. p. 23. 

 1867. Cirolana spinipes, Bate & Westwood, I. c. vol. ii. p. 299. 

 1890. Cirolana borealis, H. J. Hansen, /. c. p. 321, pi. i. figs. 1-1 o. 

 1897. Cirolana borealis, G. 0. Sars, I. c. p. 70, pi. xxix. 



Specimens are in my collection from the following 

 localities: — Shetland, Isle of Skye, Cumbrae, South Devon, 

 Guernsey ; and off West of Ireland {A. J/. iV.), many dredged 

 off S.W. of Ireland down to 808 fathoms (' Porcupine,' 

 1869); off Magaro, Norway {G. 0. Sars)] Fosse de Cap 

 Breton, Bay of Biscay (A. M. N.) ; off (Jadiz, 386 fathoms, 

 and Adventure Bank, Mediterranean (' Porcupine,' 1870) ; 

 Spain {Don Pedro Antiga) ; Adriatic [Professor Heller). 



Ann. (fc Mag. N. Uist. Ser. 7. Vol. xiv. 31 



