158 Mr. A. 0. Walker on Crustacea 



XX. — Crustacea collected hy the late Mr. R. L. Ascroft and 

 Mr. Harvey in the North of the Bay of Biscay. By Alfeed 

 0. Walker, F.L.S., F.Z.S. 



In June 1895 Mr. Ascroft went in the steam trawler 

 ' Britannia' to the northern part of the Bay of Biscay, where 

 trawling for commercial purposes was carried on off the Isle 

 de Yeu and Belle Isle. By attaching a tow-net to the back 

 of the trawl Mr. Ascroft collected a considerable number of 

 Crustacea, as shown in the list below. Mr. Harvey was 

 the engineer of the ' Britannia,' and probably obtained 

 his specimens at the same time. Unfortunately there is no 

 record of the depths at which they were taken, but these 

 would probably not exceed 100 fathoms. Some of the species, 

 such as Macropodia lonyirostris, Bodotria scorpioides, Pseudo- 

 cuma longirostris, Orchomenella nana, Perioculodes longi- 

 manus, and Aphemsa bispinosa, indicate quite shallow water, 

 while Sulenocera siphonocerus, on the only other recorded 

 occasions of its capture north of the Mediterranean (viz. off 

 the W. of Ireland in the R. Irish Acad, expeditions of 188(3 

 and 1888), occurred in 325 fath. and 345 fath. respectively*. 

 Other interesting species are Chlorotocus gracilipes t previously 

 only once taken, viz. by the ' Travailleur ' off the N. coast of 

 Morocco in 332-370 metres; Proeampylasjris armata, only 

 known from a single specimen taken by the ' Caudan' in the 

 Gulf of Gascony at a depth of 950 metres ; Leptostylis 

 walkeri, new to science ; Podoprion bolivari, taken by 

 M. Chevreux in Vigo Bay in 1889 and not since recorded ; 

 lialicoides anomahis, new to science ; and the hitherto un- 

 described male of Monoculodes gibbosus. 



Brachyura. 



1. Gonoplax rhombuides (Linn.). Four or five young. II. 



2. Xantho tuberculata, Couch. Seven or eight. H. 



3. Atelecyclus 7-dentakis (Mont.). Four young. H. 



4. Portunns depurator, Leach. One young. H. 

 6. Macropodia longirostris (Fabr.). Two. A. 



6. JEbalia tuberosa (Pennant). Three — one young. H. 



7. cranchii, Leach. One. H. 



Anomura. 



8. Anapagurus Icevis (Thompson). One young. H. 



9. Galathea dispersa, Rate. Several. II., A. 

 10. Munida bamffica (Penn.). Young. II. 



* Caiman, Trans. K. I. Acad. 1890, vol. xxxi. p. 14. 



