270 Dr. W. C. Mcintosh on the 



Subdivision Domicola, 



Fam. CoropMidae. 



Subfamily Pobocebibes. 



Genus Amphithoe, Leach. 



AmpMthoe ruhricata^ Mont. ; B. & W. op. cit. i. p. 418. 



In the debris of the fishing-boats. 



Amphithoe 2)odoceroides, H. Eathke ; B. & W. op. cit. i. p. 422 

 (as A. littorina). 

 Common in the Laminarian region, and under stones between 

 tide-marks, where it constructs tubes or nests. Most of the 

 fine specimens have the hand of the second pair defined by a 

 distinct tooth, as Kathke and Dr. Johnston state. 



Genus Podoceeus, Leach. 



Podocerus falcatus, Mont. ; B. & W. op. cit. i. pp. 436 & 447 (as 

 P. pidchellus and P. p>elagicus) . 

 In rock-pools on Ceramium riibrum at the Pier, in the 

 laminarian region beyond, in the stomachs of flounders, and 

 in the fishing-boats. Sometimes gaudily tinted with reddish 

 brown and white, and with red bars on the inferior antennas. 



Podocerus variegatus^ Leach; B. & W. op>. cit. i. p. 439, & p. 442 

 (as P. capillatus). 

 Not uncommon in pools near low-water mark at the 

 East Bocks. 



Genus Cerapus, Say. 



Cerapus diformis^ M.-Edwards ; B. & W. op. cit. i. p. 457. 

 Common in deep Avater. The straw-coloured body is marked 

 with dark grains ; and the superior antennae have the basal 

 third of the second and third segments tinted of a crimson 

 hue, the flagellnm being similarly coloured for its proximal 

 half; the eyes have black centres and, as usual, a pale 

 margin. 



Genus Siphon(ECETUS, Kroyer. 



Sijyhonoecetus typicus, Kroyer ; B. & W. op. cit. i. p. 465. 



Abundant in the laminarian region in 3 to 6 fathoms off 

 the East Rocks, where it constructs nests on the inner surface 

 of bivalve shells. S. Whitei, Gosse, is probably the female of 

 this species. 



