280 Rev. Canon Norman— /I Month on 



phosphorea * to be a variety of /. marina. In this I think 

 he was mistaken. Neither Harger nor Miers alludes to what 

 I consider the most important specific character. The 

 manner in which the lateral lobes of the thoracic segments 

 are distinctly separated from the epimera is important ; but 

 the form of the epimera themselves is quite different from 

 what it is in /. marina — instead of being of subequal depth 

 throughout, each is markedly narrow in front and gradually 

 widens backward, and thus has a wedge-shaped form (ilar- 

 ger's figures distinctly show this to be the case : compare 

 fig. 27, /. i)liosi)}iorea^ llarger, with fig. 24, /. irrorata, 

 Harger, = /. marina). The specimens I have examined are 

 types received from Harger taken in the Bay of Fundy, and 

 they have been compared with /. marina from European 

 localities as well as with specimens of the same species 

 received from Vineyard Sound, N.E. America (from Harger 

 as "/. irrorata "). 



51. Astacilla longicornis, Sowerby. 



Two small females with pouches carrying eggs, Trondhjera, 

 The most northern locality from which I have this species is 

 Tromso (/. Sparre Schneider). 



52. Janira macidata^ Leach. 



Rodberg, 40-70 fathoms. 



This is Henopomus muticus, Kroyer (* Voyage en Skand. 

 &c.' pi. XXX. figs. 1 a-n) . 



53. Pleurogonium rubicundum, G. 0. Sars. 



Pleuracantha rubicunda, G. O. Sars, " Oin en Anomal Gruppe af 

 Isopoder," Vidensk.-Selsk. Forhaud. Christ. 1863, p. 16 (separate 

 copy). 



Plmroifonimn rnhicundum, G. 0. Sars, *' Uuders. over Hardangert. 

 Fauiia, I. Crustaceer," Videusk.-Selsk. Forhand. 1871, p. 30 (.sepa- 

 rate copy). 



In 40 and 150 fathoms, Trondhjem and Rijdberg. I have 

 to thank Prof. G. O. Sars for specimens from Finmark, and 

 I have myself taken the species at Vadso, Finmark. It is 

 also a British species, since I dredged it in ISSS, in company 

 with my friend Mr. D. Robertson f, in 20-25 fathoms ott' 

 Fairland Point, Cumbrae, in the Firth of Clyde. 



* Harger, " Report Marine Isopoda of New England,"' Report U.S. 

 Comm. Fish and Fisheries, 1878, pt. 0, p. 317, pi. v. tigs. 27-29. 



t 1 may record hero another species takeu at the same time in comp.iny 

 with Plcnroj/oiilum ruhicuudiim, belonging to the same family and also 

 now to the British I'auua, I\a-a»iu>nia bilohata, G. O. Sars. 



