On a new Genus of IkOpoda from AJgiers. 561 



and not (as altered in MS. to some of my correspondents) 

 (7. crassicorne. 



Dr. W. T. Caiman^ F.L.S., who most kindly assisted me 

 in examining specimens at the British Museum, agrees with 

 uie in being unable to perceive any difference of importance 

 between C. honellii and C. acherusicum. 



References. 



(i) G. 0. Sars. 'Crustacea of Norway/ vol. i., Ampliipoda, p. 616, 

 pis. 220, 221. 



(2) A. M. Norman. Crust. Devon and Cornwall, p. 95. 



(3) HoEK. Tijdschr. Xederlands. Dierk. Vereen. vol. iv. 1879, pp. 115- 



(4) Bella Valle. F. F1. Xeapel, v. 20, p. 364, t. viii. figs. 24, 31, &c. 



(5) Stebbixg. ' Das Tierreicb,' Gammaridea, p. 692. 



(6) Cheveeux. Result. Camp. Monaco (Aoiph. de ' L'Hirondelle "), 



p. 109. 



(7) Walked. Trans. Liverpool Biol. Soc. vol. xii. 1893, p. 172. 



LXIir. — Description of a new Gtnus of Terrestrial Isopodx 

 from Algiers. By WALTER E. COLLINGE, M.Sc, F.L.S., 

 F.E.S. 



[Plate XXIII.] 



Some short time ago Dr. Leonard Doncaster very kindly 

 entrusted to me for examination and identification a small 

 collection of terrestrial Isopoda from the University Museum 

 of Zoology, (Cambridge. With one exception all the specimens 

 were European. One tube contained two examples of a very 

 striking and beautiful species from Algiers, and from a naked- 

 eye examination I at first thought they were examples of a 

 large species of Niamhia, Budde-Lund *, as they exhibited 

 the peculiar large cavity at the junction of the flagellum 

 with the peduncle of the antennae ; a more minute examina- 

 tion, however, proves them to be quite distinct from that 

 genus, although distantly allied. 



Paraniamhia tiiberculata, gen. et sp. n. 



Body (PI. XXII r. fig. 1) oblotig-oval, dorsal face slightly 

 convex, with numerous large tubercles on the head and 



* " Land-Isopoden,'" Jen. Denkschrift. GescU. 1909, Bd. xiv. p. 59. 

 Ann. (fc May. N, Hist. 8er. 8. Vol. xiii. 08 



