the Trondhjem Fiord. 4!J1 



1878. PodoceropsiA intermedia, Stebbing, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. ii. p. 307, pi. XV. tigs. Sa-f. 



Tioiullijem, 5 fatlioms. 



I Iiave .spccimeii.s of this .species from Shetland (the type, a 

 full-fj^rown male) ; off Cumbrae, 20-25 fathoms, taken in 

 company with Mr. D. Robertson, who has recorded this 

 species under two of the foregoing names ; and from Lofoten 

 Islands {G. 0. Sam). 



164. Podoceropsxs SophicB, Boeck. 

 =Namia tuberculosa, Bate. 

 Trondhjem, 20-40 fathoms. 



165. Amphitho'e rubricataj Mont. 



= Amphithoe lUtorina, Bate, = A. podoceroidrs, Rathke. 

 Tide-marks to 10 fathoms. 



166. Ischt/rocerus anguipes, Kroyer. 



Specimens of this species occurred, including adult males, 

 with the characteristic arched elongated hand of the second 

 gnathopods. 



167. Ischf/rocenis minutus (Lilljeborg). 



= Pudocerua isopus, Walker. 



This so-called species was more abundant than the last; 

 but I am not satisfied of its distinctness. I. anguipes attains 

 a much greater size in Spitsbergen than it does in Norway. 

 In rock-pools and shallow water in Norway, I, like Sars, iiave 

 found /. minutus to be abundant, and, thougli small, the 

 individuals are sexually mature ; but that is no proof that 

 they have attained their full growth. In the British Isles, 

 whence I have it from Shetland, Oban, Aberdeen coast, 

 and Cullercoats, Northumberland, in which places I have 

 myself found it, and also from Colwyn Bay, North Wales, 

 received as Podocerus isopus from Mr. A. O. Walker, the 

 examples are still smaller. The form of the second gnathopod 

 of the tully mature male is not materially different in the 

 two so-called species, the arched form being peculiar to that 

 age, and the number of teeth-processes on the upperside of 

 the last uropods I find in different specimens to range from 

 two to five ; and all the characteristics of the larger form 

 appear to me to be reconcilable with considerations of growth 

 and size. I should be satisfied of their distinctness had I 

 been able to find the arched gnathopod of male in very young 



34* 



