KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 50. N:0 5. 47 



generic difference, as in A. flava it is furnished with a monocuspidate median tooth. 

 The specimen from Ulfsfjord, figured on Pl. 4, Fig. 28 (h. 8.7), has, however, some traces 

 of lateral ciisps in the median tooth and some small markings of denticuli in the edges 

 of the lateral teeth. The inner uncini are bicuspidate with the outer cusp smaller than 

 the inner one. , 



General Distribution:^ 



Norway: Lofoten, 20—50 fms (h. 12, G. O. Särs 1878); Skatören, 30—40 fms (h. 

 20, Sparre Schneider 1885); Kvsenangen, dead, 20 — 30 fms (h. 15, Aurivilhus 1886); 

 Finmark, 15 — 20 fms (Mac Andrew 1857); Porsangerfjord (Friele 1902); Vardö, in the 

 stomach of Gadus seglefinns (Sparre Schneider 1894); Tanafjord, 232 m; between Nor- 

 way and Beeren Island, 196 — 408 m; between Beeren Island and Spitzbergen, 225 m; 

 N. W. off Magdalene Bay, Spitzbergen, 475 m (Friele & Grieg 1901). — E. of Iceland, 

 64° 53' N. 10° W., 600 m (Friele 1902). — S. coast of Sea of Ochotsk; Great Schantar 

 Island {N. aperta, 1. 35 mm, Mddendorff 1849, 1851; Dunker 1882). —E. Canada, Grand 

 Månan, 50 fms; Halifax; Sable Island; rare (Whiteaves 1901). — New England, East- 

 port, Halifax Banks, Rimouski (h. about one incli; N. flava, Goiild & Binney 1870). 

 Depths 15 fms to 600 m. Clay, stones. 



Lamellaria perspicua (Linné 1758) 



= L. proiliicta Leach 1847; L. teiitaculata Mont. of Loven 1846, not of Forbes & Hanley 1853. 



Pl. 1, Figs. 1—5. 



Hal) i tat: 



West coast of Sweden: Gullmarn (Loven), many sps, max. sh. 1. 15.2; br. 11; h. 

 7.2; col. br. 3.9, ? (Fig. 1, left) and 1. 15; br. 11; h. 6.4; col. br. 2.7, c? (Fig. 1, right); an 

 other sh., 1. 8; br. 6; h. 3.3; col. br. I.7; wh. 2 V2 (Fig. 2; = L. tentaciilata of Loven); D:o, 

 Skar (Asklund 1888), many sps, max. 1. an. 27; sh. 1. 18; br. 12.2; h. 7.5; col. br. 4; an 

 other sh. 1. 13.5; br. 10; h. 7; col. br. 2.7, ? (Fig. 4, left); an other sh. 1. IO.4; br. 7.7; h. 

 4.(i; col. 2.2, cT (Fig. 4, right); D:o, off Lindholmen (Aurivillius June 1890), 1 sp., 1. sh. 

 17; br. 12; h. 8; col. br. 4..5, ?; D:o, Stångholmen {% 1887), 2 sps, max. j. sh. 10; D:o, 

 Flatholnisrännan towards Smedjan, 40 m, sand with shells (N. Odhner 7? 1907), 1 sp., 

 1. an. 14.2; D:o, S. of Flatholmen, 18—27 m (7, 1902), 1 sp., 1. sh. 5.8; br. 4; h. 2.5; col. 

 br. 1.5, $; D:o, the soiind between Skälholmen and L. Långholmen, 25 m, algae (N. Odh- 

 ner -Vg 1907), 1 sp., 1. an. 12; D:o, Smedjan, 20 fms, shells, algse (N. Odhner '-/V 1907), 

 1 sp., 1. an. 12.2; Kristineberg (C. Aurivillius Avinter 1895), 5 sps, max. 1. sh. 12; D:o, 

 many sps, max. 1. 12.5; br. 9; h. 5.2; col. 2.7; ? (Fig. 4, middle); D:o, Ellskär, 12 — 18 m 

 ('Ve 1903), 3 sps, max. 1. an. 17, sh. 9. — Väderöarna (Asklund Aug. 1887), 1 sp., 1. sh. 



' The statements given by IIeiizexstein 189.3: West coast of N. Zeml)la and Kära Sea, which are based 

 on Middendorff"s and Leche's accounts, must be left out of considei'ation. 



