400 ON THE FAUNA AND BOTTOM-DEPOSITS NEAR THE 30-FM. LINE 



Cyhuilioeciuni dilatatnni. ) ^ , , . i 

 _•',.„. J On hydioids. 



Pcnicellina ccnuia. ) 



Membranipora Dinneiilii. On Buccimim 

 sliell in 53 only. 



Microporella ciliata. > Qn Buccinum 



Miicronclla ventricosa. | shell in 53 

 Schizoporella auriculata. ' only. 



TUNICATA. 



Ascidiella scabra. Numerous at base of 

 Ccllaria and hydroids, 

 especially of Sertularella 

 Gayi. 



Botryllus, sp. Common on hydroids and 



CcJlaria. 



A compound Ascidian common on Cellaria. 



Fishes. 

 Pleuronectes platessa {Plaice). Not 



numerous. 

 Pleuronectes limanda (Dab). Plentiful. 

 ,, microcephalus {Lemon Bab). 



Plentiful. 



Solea lutea. One in 56 only. 

 Arnoglossus laterna {Scaldback). Several 

 specimens. 



Capros aper (Chickoo). Generally one or 

 two specimens. 



Zeus faber {John Dory). One or two in 



each haul. 

 Trigla pini {Bed Gurnard). Plentiful. 

 „ gurnardus {Grey Gurnard). Plen- 

 tiful. 



,, liueata {Parrot Gurnard). Two in 



72 only. 

 Lophius piscatorius (Angler). One or two 



only. 

 Callionymus lyi-a (Dragonet). Plentiful. 

 Gobius Jeffreysi {Jeffreys' Goby). Plentiful 



amongst Ccllaria, &c. 



Crystallogobius Nilssoni. Recorded in 91 

 only. 



Scyllium canicula (Bough Dog). One 

 small one in 91 only. 



Raia, sp. A few small specimens. 



Ground IV. The Inner East Eddystone Sand. 



Two to three miles east of the Eddystone. 



Hauls. 34 (O.-tr.), 39 (O.-tr.), 40 (Fine mosquito net), 77 (B.-tr). 



The four hauls taken between two and three miles east of the Eddy- 

 stone show a fauna in most respects similar to that of the fine sand 

 of Ground III. (the Outer East Sand), but there are several important 

 additional features, which indicate a coarser ground. No sample of 

 the bottom-deposit was taken here. It is not unlikely that the 

 hauls were made on two kinds of ground, first on fine sand similar 

 to that of Ground III., and as the Eddystone was approached on a 

 coarser deposit. 



Shells are numerous, the common ones being Pecten opercularis, P. 

 maximus, Tapes virginea, and Gardium ccliinatum. 



Burroioing species. There are important differences in the burrowing 

 species on this ground and on Ground III. Astropecten irregularis is 

 much less abundant here, and Corystes cassivelaunus is entirely absent. 

 Atelecyclus heterodon was taken in haul 34, and Cardium norvegicum 

 in both 34 and 39. These differences all indicate an approach to the 

 coarser Eddystone grounds. 



Fixed species. The hydroid fauna is practically ideniical with that 

 of the preceding ground, excepting that Ilalecium halecinum and 

 //. Beanii are much more abundant, and ChactojJtcriis, to the tubes 

 of which these species are often fixed, is also somewhat more plentiful. 

 Cellaria is still plentiful. 



The Ascidians and branched Polyzoa are identical with those of 



