44 N. ODHNEB, NORTHERN AND ARCTIC INVERTEBRATBS. VI. PBOSOBRANCHIA. 2 SEMIPROBOSCIDIFERA. 



Amauropsis islandica (Gmelin 1783) 



= Natica helicoide.s Johnston 1835. 

 Pl. 4, Figs. 29—35. 



Habitat: 



West coast of Sweden: Öresund, off Hälsingborg, 20 fms, clay (Gunhild Exp. "Z, 

 1878), 1 sh., h. 20.2; ap. h. 13.5; br. 15.5; ap. br. 8.5,^ umb. 6.5; sut. 5.6; wli. 5 V3 (fossil?). 

 Between Anliolt and Laesö, Kattegatt (v. Yhlen May 1872), 1 sp., h. 7 and 1 sh., h. 9 

 (Mus. G.). 



Jutland Reef (Lindström) 2 shs, max. h. 15; ap. h. IO.4; br. 11. 7; ap. br. 6.6; 

 umb. 5.2; sut. 4 (Mus. U.). — ■ Norway, without definite locality (Diiben), 2 shs (of a 

 fresh appearance), max. h. 9.8; ap. h. 7.3; br. 7.3; ap. br. 4.5; umb. 3; sut. 2.3; wh. 5. — 

 Bodybet, 15 — 30 fms (v. Yhlen), 1 sh., h. 18. 7; ap. h. 11. 7; br. 13.7; ap. br. 7.5; umb. 

 6; sut. 4.8; wh. 6. — Haugesund (Lilljeborg), 4 sps, max. h. 17.3; ap. h. 11.8; br. 12.8; 

 ap. br. 7.5; umb. 5.3; sut. 4.6; wh. 5 (Mus. U.). ■ — Bergen (Koren), 1 sh., h. 16; ap. h. 

 11.7; br. 12.3; ap. br. 8,4; umb. 5.9; sut. 4.5; wh. 5 V2. — Grip, Romsdal (Lilljeborg 1852*), 

 1 sh., h. 4.2 (Mus. U.). — Christiansund and Molde (Lilljeborg 1852^), 1 sp. h. 14.4; wh. 

 5 (Mus. U.). — Trondhjemsfjord (Koren), 2 shs (fossil?), max. h. 24; ap. h. 17; br. 18; 

 ap. br. 10.4; wh. 5 %. — Finmark (Loven, det. as Natica canaliculata Gould), 10 shs, 

 max. h. 18,2; ap. h. 13.2; br. 14.4; ap. br. 8.2; umb. 5.8; sut. 4.7; wh. 5 V3 (Fig. 34). — 

 Kjelvig, 15 fms (Loven), 1 sh., h. 6.1; ap. h. 4.2; br. 4.5; ap. br. 2.8; umb. I.9; sut. I.5; 

 wh. 4 V4. — Grötsund, 4 fms, shells (Goés & Malmgren 1861), 1 sh., h. 8.6; ap. h. 6; br. 6.8; 

 ap. br. 3,5; umb. 2.4; sut. 2.5; wh. 4 ^U. — Ulfsfjord (G. & M. 1861), 1 sp., h. 6; ap. h. 4.3; 

 br. 4.3; ap. br. 2.8; umb. l.s; sut. I.4; wh. 4. — Karlsö Sound, 15 fms, stones, corals (G. & 

 M. 1861), 1 sh., h. 5; ap. h. 3.8; br. 4; ap. br. 2.5; umb. I.4; sut. I.3; wh. 4. 



Kola Peninsula (Sandeberg 1877): Chervanna, 30 fms ('7o), 1 sh., h. 14.5; ap. h. 

 10.5; br. 10.8; ap. br. 6.7; umb. 4; sut. 4.4; wh. 5. — Solitza (^7?)» 1 fragmentary sh., 

 h. 20.7; ap. h. I6.3; br. about 16; ap. br. about 10; umb. 5.5; sut. 5.5. 



Kära Sea (Leche 1878). Dimensions: Kära Sea 71° 6' N. 66° 23' E., 8—9 fms, 

 sand, 1 sp., h. 5.9; ap. h. 4.6; br. 5; ap. br. 3; umb. 2.i; sut. I.2; wh. 3 V2. 



North of Siberia (Aurivillius 1887). Dimensions: Vega St. 5, 1 sh., h. 9; ap. h. 

 7; br. 7.5; ap. br. 4.5; umb. 2.8; sut. I.9; wh. 4. — Vega St. 45, 5 shs and 1 sp., h. (sp. ) 

 24, ap. h. 18; br. 20.5; ap. br. 12; umb. 9.8; sut. 5.7; wh. 4 +; max. sh. h. 25.2; ap. h. 

 I8.9; br. 21.3; ap. br. 13.5; umb. 9.5; sut. 6; an other sh. h. 23.7; ap. h. 18; br. 21; ap. br. 

 12; umb. 7.8; sut. 5.9; wh. 4 y, (Fig. 31); an other sh. h. 22.5; ap. h. 14.5; br. 17.5; ap. br. 9.4; 

 umb. 7; sut. 6.3 (Fig. 33); apex of the shells eroded. — Vega St. 72, 2 shs, max. h. 22; 

 ap. h. I6.5; br. 17.7; ap. br. IO.5; umb. 8.4; sut. 4. (Fig. 32), apex eroded. 



Spitzbergen: no definite locality (Torell), 2 shs, max. h. 24.8; ap. h. 17.5; br. 20.3; 

 ap. br. 11.8; umb. 7.2; sut. 6.5; wh. 5; D:o (1872—73), 1 sh., h. 26.7; ap. h. I8.7; br. 20.3; 

 ap. br. 11.3; umb. 9; sut. 7.5; with Bryozoa. — Bel Sound, 30 — 40 fms, stones, zooph}d:es 

 (1861), 2 fragmentary shells with Bryozoa, max. h. 24. — Kings Bay, 25 fms, fine clay 

 (1861), 1 sh., h. 39; ap. h. 29.2; br. 30.5; ap. br. 17.5; umb. 13; sut. IO.2; wh. 6 Vs (Fig. 29). 



