284 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



fine silk as much as possible of the material brought up 

 by the dredge during marine expeditions, and it is by this 

 means that several of the above-mentioned Copepoda new 

 to the district have been obtained, as well as the new 

 species Pseudocijdopici stephoides. Large quantities of 

 ophiuroids, chiefly Ophiocoma nigra and Ophiothrix 

 fragilis, were amongst the dredged material, and it is pro- 

 bably from one or other of these that the two specimens 

 of Cancerilla tuhulata, Dalyell, a male and female, were 

 taken, as the species is parasitic on ophiuroids. The first 

 record of this rare copepod occurs in Dalyell' s " Powers 

 of the Creator," 1851, and it has since been taken by 

 Mr. Gamble at Plymouth, and off the French coast, but 

 not before in our district. Cyclops magnoctavus, Cragin, 

 was found along with quantities of Temorella affinis and 

 TacJiidius hrevicornis in tow-nettings taken by Mr. Ascroft 

 in low-water marine pools at Lytham : these being 

 brackish species, it is probable that a considerable 

 amount of fresh-water finds its way into the Lytham 

 pools. Cyclops eivarti, Brady, although first taken in the 

 Forth estuary, was suspected by Brady to have a fresh- 

 water origin. Ours are evidently strictly marine, two 

 specimens, both males, having been dredged at 20 fathoms 

 by Mr. Thompson at Port Erin." 



Mr. A. 0. Walker reports as follows upon the Higher 

 Crustacea : — " Collections have been examined from the 

 following places, viz. — 



1. Off Port Erin at various points, dredged in (usually) 

 10 to 50 fathoms by Professor Herdman and Mr. I. C. 

 Thompson, in March, July, August, and September, 1894. 



2. Off the Little Orme, North Wales, 5 to 10 fathoms 

 (dredged by A. 0. Walker). 



3. In the Menai Straits, near the Suspension Bridge 

 (both above and below), on April 2nd and May 31st, 1894 

 (dredged by A. 0. Walker). 



