% AMPHIPODA. 



the two chief figures in ' Brit. Sessile-Eyed Crustacea' 

 represent another species, the side view has been altered as 

 regards the lower antenna from the figure in the Brit. Mus. 

 Cat., and that antenna and the segmented urosome on the 

 figure of the animal as viewed from above would seem to have 

 been taken from a female specimen of Corophium affine of 

 Bruzelius. 



Bate records " C. spinicorne " from Plymouth, but it is 

 uncertain what species he really meant, and C. crassicorne is 

 not included in the present catalogue as belonging to the 

 Devon and Cornwall fauna. Other naturalists have recorded 

 C. crassicorne, but from the confusion which has existed, we 

 think it better that the records should be confirmed. The 

 females of C. crassicorne and C. Bonellii are much alike in 

 many respects, and both have the segments of the urosome 

 coalesced ; the chief distinctions are in the characters of the 

 two pairs of antennae. 



Corophium Bonellii is extremely abundant at Plymouth, 

 and, unless our memory fails us, especially on the stony 

 ground of Mill bay. We can fully bear out the statement of 

 Sars as to the remarkable similarity in the sexes of this 

 species. Among some hundreds of specimens loosely ex- 

 amined there were none which at a glance would seem 

 to be males ; but we have not gone through them critically. 



UNCIOLA CKENATIPALBIA (Bate). 



1855. Unciola irrorata, Gosse (nee Say), "New and little-known 



Marine Animals," Ann. & Mag. Nat. Hist. ser. 2, vol. xvi. 



p. 307, and Marine Zoology, vol. i. p. 141, h'g. 256. 

 1863. Dry ope crenatipalma, Bate, Cat. Aruphip. Brit. Mas. p. 277, 



pi. xlvii. tig. 2. 



1863. Dryope crenatipalmafa, Bate & Westwood, vol. i. p. 490, . 

 1 863. Dryope irrorata, iid. ibid. p. 488, $ . 

 1889. Unciola crenatipalmata, J. Bonnier, "Les Arnphipodes du 



Boulonnais, I.,'' Bull. Sci. de France et Belgium, vol. xx. p. 229, 



pis. xii., xiii., J 5 . 

 1893. Unciola crenatipalmata, Delia Valle, p. 340, pi. Iv. figs. 32-36. 



Dredged near Pope's Nose, Torquay (Stebbing} ; plentiful 

 off Plymouth " among shells and stones on a muddy bottom 

 at a depth of twenty fathoms " (Garstang, ii. p. 337, and iii. 

 p. 119). 



Fam. 27. COLOMASTIGID^E. 



COLOMASTIX PUSILLA, Grube. 



1861. Colomastix pusilla, (irube, Ein Ausflug nach Triest und dem 

 Quarnero, p. 137. 



1862. Cratippus tenuipes, Bate, Cat. Ampbip. Brit. Mus. p. 276 

 pi. xlvi. fig. 10. 



