coROrnin)^. 281 



Stan); Moray Frith (lirv. O. Gordon); Norfolk and mouth of the '>r('(l- 

 wiiy (Liiuh) ; roast of Saintongo (Qn(tfrff(i</cs) ; Hay of I/Aifj^uilloii, 

 Koilu'llo (J/. D'Or>>i(/n)/); coasts of Sweden and Norway (Bruzelius). 

 In muddy estuaries probably all round the British shores. 



In the month of Jiily 1858 I took several specimens, along with 

 Po'loct'i-us, amongst weed attached to a buoy in Plymouth Sound. 



The colour of this little animal is grey, the tint being produced 

 by black stellate markings on a whitish ground : it assimilates very 

 closely in hue to the soil in which it resides. It dwells in small 

 tubular galleries in the mud ; but I have not ascertained whether it 

 perforates these channels, or occupies them after they have been 

 excavated by the annelides on which it preys. Quatrefages, in his 

 ' Rambles of a Naturalist' (vol. ii. p. 312, English translation), says 

 that '•' about the end of April they come from the open sea in 

 myriads (they are called ' Perms ' by the fishermen of the coast of 

 Saintonge), to wage war with the annelides, which they entirely de- 

 sti'oy before the end of May. They then attack tlie mollusca and 

 fish all through the summer, and disappear in a single night about 

 the end of October and return again the follo-\ving year." 



2. Corophium spinicome, n. s. (Plate XL"VT;I. fig. 5.) B.M. 



Female. — Cephalon having a central projection between the antennas ; 

 the lateral margins advanced anteriorly as far as the central point. 

 Eyes distant from each other, and near the outer margin of the 

 cephalon. Superior antenna) broad at the base, and nearly haK the 

 length of the animal ; first joint of the peduncle long-ovate, and 

 armed with three strong spines on the inner side at the base ; second 

 joint much narrower than, and not half the length of, the first , tliird 

 joint very small ; flagellum neai'ly as long as the peduncle. Inferior 

 antenna) scarcely longer than the superior ; second joint of the 

 peduncle broader than long, internally having a tubercle crowned 

 ^^•ith a short straight spine; third joint as broad as long, internally 

 ha\'ing a tubercle crowned with three spines ; fourth joint reach- 

 ing to the extremity of the second of the peduncle of the superior, 

 as broad as the preceding, and anteriorly produced upon the inner 

 side to a blunt process or tooth ; the internal margin of the joint is 

 armed with stiff spines, which are directed laterally near the base, 

 but gradually diverge until the anterior ones are pointed nearly 

 straight forwards : the fifth joint is about half the length of the 

 foui-th, but much narrower ; the flagellum is uniarticulate, and 

 tipped with several small spines. The rest of the animal differs 

 but slightly from that of C. lonykorne. 

 Length ^ths of an inch. 



Hah. Ph-mouth {Mrs, Hudson) ; Yarmouth {Mr. Jeffreys) ; Cum- 

 brac {Mr. Robertson). 



