478 ON THE FAUNA AND BOTTOM-DEPOSITS NEATl THE SO-FM. LINE 



DisTRinuTiON. Geographical. Pas-de-Calais, Xortli Sea, Channel, Atlantic, Mediter- 

 ranean (Saint-Joseph, No. 102). Tlie Cliallenger obtained two small specimens at Cape 

 Verde Islands (M'Intosh, No. 85) Irish Sea (Horncll, No. 49). Herviione Jnjslrix is a 

 distinctly .sonthern species. Claparede and Marion and Bobretzky (No. 73) state that 

 it is extremely abundant in the Mediterranean. According; to Malmgren (No. 72) and 

 Michaelsen (No. 79), the corresponding northern species appears to be Laetmonice filicomis, 

 Kinberg. 



Depth. Occasionally on the shore under stones in the Mediterranean (Marion and 

 Bobretzky) ; 40-80 fathoms {Porcupine, ofl" Algiers, M'Intosh, No. 82). 



Bottom-deposit . Hornell states that in the Irisli Sea this species is found on shell debris, 

 gravel, etc., never on purely sandy or muddy deposits, which agrees with the distribution 

 found in the Plymouth district. Marion and Bobretzky say that in the Gulf of Marseilles 

 it is especially abundant on zostera beds. 



Lepidonotus squamatns (Table YI.) is found occasionally upon grounds 



of all kinds, but is more numerous on the gravels to the westward of 



the Eddystone than elsewhere. On Ground IX. (haul 93) it was very 



abundant. 



Di.sTKiBUTiON. A northern species. Coast of Virginia (Verrill), Iceland, Faroe, Norway, 

 England, north-west France [fide Michaelsen, No. 79). The Challenger dredged one small 

 specimen at the Azores in 450 fathoms, on a bottom of volcanic mud, which M'Intosh (No. 

 85) refers to this species. The Poixupine (No. 82) obtained Lepidonotus squamatns on a 

 stony and muddy bottom at 30-40 fathoms off Dingle Bay. Hornell (No. 49) found it 

 most abundant in the Irish Sea in 18 to 20 fathoms. 



Uunoe nodosa (Table VI.). One specimen taken in haul 45 on the 

 Prawle Stony Ground (XVIII.) was identified by Prof. Weldon. 



Distribution. East of North America, Greenland, Iceland, Spitzbergen, Nova Zenibhi, 

 Kara Sea, Siberia, Norway, Shetland, England, north-west of France, English Channel 

 {fide Michaelsen, No. 79). 



Lagisca propinqiia (Table VI.) is an abundant species, taken both on 



the fine sand and on the gravel grounds. 



Distribution. L. propinqua has a wide range both in its geographical and bathy- 

 metric distribution. It is found on the United States Coasts, Faroe, Shetland, south-east 

 of Scotland, and at Madeira {fide Michaelsen, No. 79). It was obtained by tlie Knight 

 Errant in the Faroe Channel, at a dei)th of 515 fathoms, on a l)ottom of ooze (No. 85). 

 The Caudan took it at three stations in tlie Bay of Biscay, on coral and nuiil and on nmd, 

 at depths from 355 to 930 fathoms (Koule, No. 101). Hornell found it constant and 

 abundant in the Liverpool district, beneath stones and in rock cavities from mid-tide to 

 57 fathoms (No. 49). 



Lagisca rarispina (Table VI.) was identified by Prof. Weldon in haul 

 92 on the fine sand Ground I., and in haul 70 on the fine sand Ground 

 VII. 



Dlstiubution. An Arctic species East of North America, Greenland, Iceland, Siberia, 

 Nova Zenibla, Kara Sea, North-West Norway, North of England (fide Michaelsen, No. 79). 

 In the North Sea it was taken on bottoms of mud and nniddy sand, at depths from 20-24 

 fathoms, being sometimes abundant (Michaelsen, No. 79). Tiie Norwegian North Atlantic 

 expedition obtained it at a dejith of 160 fathoms, on a bottom of grey clay (Hansen, 

 No. 36). 



Harmithoe imbricata (Table VI.). Occasional specimens on the fine 

 sand Grounds III. and VII., and on the clean shell gravel of Ground 

 XVI. 



