84 LIVERPOOL BIOLOGICAL SOCIETY. 
sidered them to be females of P. anguipes, Kr., in spite of 
their small size. No male of this species, which has a very 
characteristic second gnathopod, is known to have been 
taken on the British coasts, which furnishes another 
reason for believing our species to be distinct. 
*Corophium crassicorne, Bruzelius. 
I.d. Two or three specimens of what I take to be the 
young form of the above. The upper antenne have three 
spines on the first joint ; the lower have one double spine 
on the first joint, two double and one single on the second, 
and one single on the third joint of the peduncle. Hoek,t 
who describes and figures this form, also considers it 
probably the young of the above species, though some 
females had eggs. In other respects my specimens agree 
closely with Hoek’s figures of the adult C. crassicorne. 
Norman has taken this form at Roundstone, in Ireland. 
CAPRELLIDZ. 
Proto ventricosa, Muller. 
P. pedata, Mont. 
P. goodsiri, Bate. (Old male.) 
Three or four specimens. I.d. Stebbing! holds that 
P. goodsiri is merely a form of P. ventricosa, in which he 
has been confirmed by Mayer.§ 
Aigina phasma, Mont. 
Protella phasma, Bate and Westwood. 
Several fully developed specimens. I.d. 
*Caprella acanthifera, Leach. 
Three or four specimens. I.d., IV. None of the speci- 
mens had fully developed tubercles or spines, and they 
+ “Tijdschrift Nederland. Dierkund. Vereen.,” Deel. iv., p. 118, pl. viii, 
figs. 9 and 10. 
+ “Ann. and Mag. Nat. Hist.”’ Series 4, vol. xvii., p. 78. 
§ ‘Fauna, &c. des Golfes v. Neapel.,” part vi., 1882. Caprelliden. 
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