96 MR. p. DAT OK THE MARINE FAUNA 



entails, L. ; Turritella terebra,L. ; Natica g7^oe.nlandica ; Fususislmi- 

 dicus, Chemu. ; Pleurotoma turricula, Moat. That evening we 

 anchored at Aberdeen. 



July 5th, at 1.30 p.m. left Aberdeen, and at 9 p.m., when 

 about twenty miles off Peterhead, took a mackerel midge, the 

 young of the three-bearded rockling, in a tow-net; and T 

 subsequently captured about half a dozen more, at distances 

 varying from twenty to fifty miles from land. Knding these 

 young forms almost invariably so far from land, would seem to 

 point to the probability of the eggs, like those of the cod, being 

 extruded some distance from the shore and floating until- hatched. 

 Mr. Sim tells me that near Aberdeen he has captured these 

 fishes in rock-pools. As I have already remarked, they have 

 been observed forming the food of herrings off" the south-west 

 coast of England. The evening was mild, and many large jelly- 

 fishes were floating along past the vessel ; but only a few gulls, 

 gannets, and guillemots were seen. 



July 6. Dredge no. 4 was down at 11.40 a.m., remaining 

 until 1 P.M. ; it was put overboard in lat. 57° 36' N. and 0° 47' 

 E. long., in fifty-eight fathoms water having a surface-tem- 

 perature of 55°, and 49° at the bottom, which consisted of 

 fine sand. Three flatfishes {Hippoglossoides limandoides), the 

 smallest being seven tenths of an inch in length, were secured? 

 some crabs and sea-urchins. Starfishes and shells were similar 

 to those obtained at the preceding dredge, showing a great 

 absence among the latter of living forms ; also a fair number of 

 annelids. Corals were more abundant, and Polyzoa numerous. 



The stalk-eyed Crustacea consisted of: — 1 InacJitis dorsetfensis ; 

 1 Portunus pusillus ; 6 Hyas coarctatus ; 10 Galatliea squamifera, 

 some of which were very small; 3 Pagurus Bernliardus; 13 

 F. Prideauxii, some of these being with ova ; 2 Hippohjte Thomp- 

 sonii also with ova ; 2 Crangon Allmanni ; 1 Pandalus annulicor- 

 nis also with ova. 



Among the Mollusca were : — Anomia epMppium, L. ; Pecten 

 tigrinus, Miill. ; Leda minuta, Miill. ; Lucina flexuosa, Eorb. and 

 Han. ; Gardium j^gmceum, Don. ; C. ecliinattim ; Astarte sulcata, 

 Miill. ; A. compressa, Mont. ; A. scotica, Mat. and Eack. ; Venus 

 striatum, Humph. ; V. ovata, Penn. ; Tapes pullastra, Mont. ; Tellina 

 halthica, L. ; Saxicava rugosa, L. ; Dentalium entails, L. ; Trochus 

 alahastrum, Bech. : numerous Turritella terehra, L. ; Scalaria Tre- 

 velyana. Leach ; Fusus islandicus. At 3.30 p.m. the lead, being 



