328 



REPOKT — J 894. 



report, have since been identified by Rev. T. R. R. Stebbing as Pleuro- 

 crypta galatece, Hesse, PL intermedia, Giard and Bonnier, and PI. nesca, 

 n. sp., from Galathea nexa (see fig. 1). They are all on the right-hand 

 side of the hosts' carapace, and all laden with eggs. 



Fig. 1. — Pleurocrypta nei'a, Stebbing, male and female (from a drawing kindly 



sent by Mr. Stebbing). 



Mr. Alfred Leicester of Southport, who has taken part in most of the 

 expeditions, and has collected and ideatitied the Mollusca, reports that the 

 year's work has added fifty-one fresh records to tlie lists for the southern 

 part of the Isle of Man, and that of these tlie following nine are new to 

 our district of the Irish Sea : — Cardiuin minimum, Phil., Psammobia ves- 

 periina, Chem., ScrobicuJaria iiitida, Miill., Chiton marginatus, Penn.,. 

 Prupilidium ancyloides, Forb., Pissoa inconspiciia, Aid., Ccecum trachea, 

 Mont , Aclls Gulsonoi, Ch., and Pliiline angidata, Jeff. 



Finally two additions have been made to our list of local fishes, viz., 

 Ze^Kjopterus unimaculatus, four specimens trawled 10-12 miles west from 

 Morecambe Bay Lightship in May, depth 23 fathoms ; and Gobius pictus. 

 Malm, caught by Mr. Walker in shore pools at Colwyn Bay. 



THE SUBMARINE DEPOSITS. 



Turning now to the submarine deposits, the determination and dis- 

 tribution of which the Committee feel to be a vei-y important part of their 

 work, it is still too soon to attempt anything like a detailed account of 

 the floor of the Irish Sea, but still sufficient observations have perhaps 

 been made to warrant the following preliminary account. The accom- 

 panying chart (Plate I.) shows the zones of depths in the district, 0-10 

 fathoms, 10-20 fathoms, 20-50 fathoms, and upwards of .50 fathoms, being 

 separated from one another. At those places where the Committee (or the 

 Liverpool Marine Biology Committee) have obtained samples of the bottom, 

 conventional symbols are placed on the chart ' indicating, O stones, A shells, 



CH mud, I X I sand, X nullipore deposits {Melohesia and Lithothamnion), 



' One mark frequently stands for a number of different dredgings in the same 

 neighbourhood. 



