REPORT ON THE COPEPODA. 205 



Multitudes of this species were taken in the tow-net 

 near Puffin Island during the cruise of the " Hjaena." It 

 also occurs plentifully among Prof. Herdman's Port Erin 

 gatherings. 



Centropages typicus, Kroyer. 



fcthyophorba denticornis, Glaus, Die frei-lehenden Coyepoden, 



p. 199, pi. XXXV, figs. 1, 3-9 (1863). 

 Icthyophorha denticornis, Brady, Nat. Hist. Trans. N. and D,, 



vol. i, p. 40, pi. iv, figs. 1-6 (1864). 



One specimen only of this species was found in the tow- 

 net material collected in Hilbre Swash during the " Merry 

 Andrew " expedition. 



Centropages hamatus, Lilljeborg. 



This common species was found abundantly during the 

 cruise of the '* Hyaena," off Puffin Island, as well as in 

 Hilbre Swash, and in the Port Erin gatherings. 



Brady refers to the " spines of the swimming feet differ- 

 ing remarkably from those of Centropages typicus, in having 

 their serrated armature much stronger, and the teeth sepa- 

 rated one from another by a wider interval"; but the 

 specimens of the two species which I have examined seem 

 very similar in this respect. 



Anomalocera pater soniiy Templeton (PI. IV, fig. 2). 



IrencBus patersonii, Goodsir, Bdin. New Phil. Journ., xxxv, 



p. 339, t. vi, figs. 12-17 ; t. iv, figs. 1-9 (1843). 

 IrencBus patersonii, Glaus, Vie frei-lehenden Copepoden, p. 206, 



taf. ii, fig. 1, t. xxxvii, fig. 1-6 (1863). 



A few specimens of this most interesting species were 

 taken during the cruise of the " Hyaena." It is remarkable 

 for its various colours, many of which are still preserved 

 after mounting in Farrant's solution. 



Brady says he has " never been able to find the spine 

 which is said by Dr. Claus to exist in the first segment 



