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



Kara Seu, Siberia, Xoitli and West Norway, North Sea, British Coasts, French Coasts, 

 Mediterranean [fide Michaelsen and Saint-Joseph]. 



Depth and Bottom-deposit (T. cincinnatus). The Pommerania dredged the species 

 generally on fine sand, sometimes on coarse gronnds from 10 to 49 fathoms (Mol)ius, 

 No. 87) In the Shetlands M'Intosh (No. 81) obtained it from 50 to 120 fathoms, 

 and the Knight Errant found it at 540 fathoms (M'Intosh, No. 85). Hornell (No. 49) 

 records it in the Irish Sea from sliore to 22 fathoms, becoming more abundant in tlie deejjer 

 water. The Norwegian North Atlantic expedition obtained it at seven stations from 

 35 fathoms to 658 fxthoms, generally on a bottom of clay (Hansen, No. 36). The Caudan 

 found it numerous at three stations in the Bay of Biscay, twice at 98 fathoms on gravel 

 and sand, and once at 219 fathoms on mud (Roule, No. 101). 



Amj^hitrite gracilis. An occasional specimen on Grounds VII. (fine 

 sand) and XVII. (Bolt Head Shell Gravel). 



DiSTKlBUTlON. North America, Greenland, Kara Sea, British Coasts {fide Michaelsen, 

 No. 79). Saint- Joseph found it at Dinard on the shore only, living in mud between stones, 

 and not forming a tube. 



Pohjcirrus aurantiacns. Two specimens on the muddy gravel ground 



(XIII.) south-east of the Eddystone. The species is common in Plymouth 



Sound (Millbay Channel) and in the estuary of the Yealm. 



DiSTiuJiUTioN. English Channel, west of France, Mediterranean (Saint- Jose] ih, No. 

 102). At Dinard in 2-15 fathoms. M'Intosh records it from the Shetlands in 70-80 

 fathoms. The Pola dredged it in 220 fathoms {fide Saint- Joseph). 



Sabcllaria sjuni'losa. Forming very hard, sandy tubes on shells, etc. 



Though the records are not numerous the species was common on all 



grounds where dead shells were numerous. 



Distribution-. North Sea, Channel, Atlantic (Saint- Joseph). In North Sea, 0-40 

 fathoms (Michaelsen). 



Sabella (pavonina ?). Specimens never reaching a length of more than 

 three or four inches, but probably belonging to this species, were 

 common, generally attached to the base of hydroids on both the fine 

 sand and coarse gravel grounds in the neighbourhood of the Eddystone. 

 They were especially abundant on the fine sand, usually associated 

 with Scrtularella Gayi. 



Distribution. Geographical. North America, Greenland, North-West and West 

 Norway, British Coasts, North-West France, and west of English Channel (fide 

 Michaelsen). 



Depth and Bottom-deposit. The Pommerania obtained Sabella pavonina from 1 6 to 52 

 fathoms. At 52 fathoms it was abundant on sandy mud. It was scarce on coarse grounds 

 (Mijbins, No. 87). Michaelsen also records it in the North Sea from sandy mud. The 

 Norwegian North Atlantic expedition obtained it on clay at 135 fathoms and at 300 

 fathoms (Hansen, No. 36). The Porcupine dredged it at 725 fathoms (Elders, j?c?e Saint- 

 Joseph, No 102) ; the Caudan on mud at 98 fathoms in the Bay of Biscay (Roule, No. 

 101). From these records it is clear that the species is generally found on nmd or muddy 

 sand. 



Filofjrana implcxa (Table Yl.). Large colonies were present only in 

 haul 103 (Ground XIII.), south-east of the Eddystone, probably owing 

 to the fact that the wave action is somewhat less there than on the 

 grounds to the westward of the Eddystone (c/. p. 425). Small colonies, 



