244 



DEPARTMENT OF THE NAVAL SERVICE 



8 GEORGE V, A. 1918 



Bathymetric Tables — Continued. 



Bathymetric Range. 



Min. 



and 



Max. 



Depth. 



Inter- 

 tidal 

 Zone. 



Fathoms. 



1-15 



15-50 50-100 100 X 



15-50.. 



15-50.. 



50^9.. 



10-20.. 



6-110.. 



38-313. 



10^0.. 



15-60. 



0-30... 



I.T.-6 



3-80 .. 



38-125. 



10-200. 



MoLLuscA — Con. 



Pelecypoda — Con. 



Epitonium groenlandicu.s Perry 



Kellia .«uborbifulari.* (Montagu) 



Kennerlia glacialis (Leach) 



Leda minuta (Muller) 



Leda pemula (Muller) 19 



Leda pernula var. jacksonii Gould 



Leda tenuisulcata (Couthouy) 35 



Limatula subauriculata (Montagu) 



Liof-yma fluctuosa (Gould) 



Lyonsia arenosa (MoUer) 



Lyonsia hyalina Conrad 35, 42, 46 



Macoina balthica (L) 42 = M. balthica fusca 35, 46 



Maeoma calcarea (Gmelin) 19, 46 



Macoma inflata Verrill & Bush 



Megayoldia thraciaeformi.s (Storer) 42 = Yoldia 



thraciaeformis 35 



Mesodesma deauratum (Turton) 



Modiola (Brachydontes) demissa (Dillwyn) 35, 46 



Modiola modiolus (L) 19, 35, 46 



Modiolaria corrugata (Stimpson) 35, 42 



Modiolaria diseors (L) 19, 42 46 = M. laevigata 35 



Modiolaria nigra (Gray) 19, 35, 46 



Mulinia lateralis ( Sav ) 35 



Mya arenaria L. 19,- 35, 42, 46 



Mva trunfata L 19 



Mytilus edulis L. 19, 35, 42, 46 



Xufula delphinodonta Mighels 35, 42 



Nupula cxpansa Reeve 



Xucula proxima Say 35, 46 



Xufula proxima var. trunculus Dall 



Xuoula tenuis (Montagu) 19 



Ostrea virginica Gmelin 35 



Panopaea (Panomya) norvegica Spengler 



Pecten gibbu« var. borealis Say 35 



Pecten (Camptonectes) groenlandieus Sowerby. 



Pecten (Chlainys) islandicus Muller 19, 35 



Pecten (Placopecten) magellanicus (Gmelin) 19, 



35,42,46 



Pecten (Cyclopecten) pustulosus Verrill 



'Pecten (Camptonectes) vitreus (Chemnitz) 



Periploma fragilis (Totten) 46 



Petricola pholadiformis Lamarck 46 



Portlandia glacialis (Wood) 



Rochefortia mf)lleri (Morch) 



Saxicava rugosa (L) 42, 46 = S. arctica 19... . 



Serripes groenlandieus (Gmelin) 19 



Siliqua costata (Say) 35 



Siliqua squama (Blainville) 



Solenomya boreali.s Totten = Solemya borealis 35 

 Solenomya velum Say = Solemya velum 35.. 

 Spisula (Hemimactra) polynyma (Stimpson). 

 Spi.sula (Hemimactra) solidissima (Dillwyn) 35, 46 ( 



Tellina (Angulus) tenera Say 35 



Teredo dilatata Stimpson 



Teredo navalis L. 35 



Thracia conradi Couthouy 35 



Thracia myopsis (Beck) MoUer 



Thracia truncata Mighels & Adams 42 



Tottenia gemma (Totten) = Gemma gemma 35. 



Turtonia minuta (Fabricius) 



Venericardia borealis (Conrad) 19, 35, 42, 46 



Venus mercenaria L. 25 



a In Long Island Sound, the Oyster flourishes in 70 to 80 feet of water. 

 gical Station Bull. Xo. 3. p. 11, 1905. 



I.T.-7. . . 

 I.T.-25.. 



0-100 



0-100 



I.T.-40. 



4-10 



I.T.-40.. 

 I.T.-45.. 

 I.T.-19.. 

 53^-100.. 



30 



1-17 



4-80 



4-100... . 



<3a 



40-.50. .. 



2-15 



200-313.. 

 1-100... 



4-20 

 115-4.30. 

 57-400 . 

 3-100. . 

 I.T.-6... 

 15-25... 



18 



0-50 



10-60 . 

 17 :' 



z-o . . 

 0-10. 

 0-19. 

 0-19. 



13-15. . 

 6-19... 

 10-50... 

 10-60... 

 I.T.-14. 







.3-50. . . . 

 0-6 



.J. L. Kellog, La. Gulf Biolo- 



