NEMATOSCELIS TENELLA. 263 
Distribution.— The long list of Stations shows that NV. gracilis was wanting 
in the most southern part of the area explored, viz. South of Lat. 20° S., that it 
was very common between Lat. 20° §. and the line, and that it was taken six 
times North of the line, northwards to near Lat. 16° N. The specimens from 
the six first-named of Ortmann’s Stations (1894) for N. microps all belong to 
N. gracilis, excepting two specimens which belong to N. tenella G. O. S. and are 
mentioned below; furthermore the specimens from a single Station (from Lat. 
12° 34’ N.) referred by Ortmann to JN. tenella are also N. graeilis; all Ortmann’s 
Stations in question are situated in the area where N. gracilis was taken in 1904- 
1905. Furthermore the species was taken at a number of Stations in the Indian 
Archipelago by the “‘Siboga,” but is hitherto unknown from any other place 
and is certainly wanting in the Atlantic. 
The list shows also that small specimens have been taken a few times at 
the surface, but that larger or full-grown specimens, with a single exception, 
were always taken in the vertical net from 300 fms. to the surface, and that 
ten specimens were taken in the bottom of the Tanner net towed at 300 fms. 
29. Nematoscelis tenella G. O. S. 
Plate 10, figs. 3a-3e. 
1883. Nematoscelis tenella G. O. Sars, Forh. Vid. Selsk. Christiania for 1883, no. 7, p. 28. 
1885. Nematoscelis tenella G. O. Sars, Challenger Rept., 13, p. 133, pl. 25, figs. 5-7 (young). 
1910. Nematoscelis tenella H. J. HANSEN, Siboga-Exp., 37, p. 110, pl. 15, figs. 4a-4m. (With full 
synonymy). 
Sta. 4637. Nov. 5,1904. Lat. 1°31’ N., long. 86°32’ W. 300 fms. tosurface. 3 specimens. 
Sta. 4638. Nov. 6, 1904. Lat. 0° 27’ N., long. 87° 13’ W. 300 fms. to surface. 1 specimen. 
Sta. 4646. Nov. 8,1904. Lat. 4°1.6’S., long. 89° 16.3’ W. 300 fms. to surface. 1 specimen. 
Sta. 4679. Dec. 7,1904. Lat. 17° 26.4’S., long. 86° 46.5’ W. 300fms.tosurface. 1 specimen. 
Sta. 4681. Dec. 8, 1904. Lat. 18° 47.1’S., long. 89° 26’ W. 300 fms. to surface. 5 specimens. 
Sta. 4685. Dec. 10,1904. Lat. 21° 36.2’S., long. 94°56’ W. 300 fms. tosurface. 3 specimens. 
Sta. 4687. Dec. 11,1904. Lat. 22° 49.5’S., long. 97° 30.6’ W. 300 fms. to surface. 1 specimen. 
Sta. 4689. Dec. 12,1904. Lat. 24° 5’S., long. 100° 20’ W. 300 fms. to surface. 5 specimens. 
Sta. 4691. Dec. 13,1904. Lat. 25° 27.3’S., long. 103° 29.3’ W. 300fms.tosurface. 1 specimen. 
Sta. 4699. Dec. 25,1904. Lat. 21°39.5’S., long. 104° 29.8’ W. 300fms.tosurface. 1 specimen. 
Sta. 4705. Dec. 28,1904. Lat. 15° 15.3’S., long. 99°19’ W. 300 fms. tosurface. 6 specimens. 
Sta. 4707. Dec. 29, 1904. Lat. 12° 33.2’S., long. 97° 42’ W. 300 fms. to surface. 7 specimens. 
Sta. 4715. Jan. 2,1905. Lat. 2° 40.4’/S., long. 90° 19.3’ W. 300 fms. to surface. 2 specimens. 
Sta. 4716. Jan. 2,1905. Lat. 2°18.5’S., long. 90° 2.6’ W. 600 fms. tosurface. 1 specimen 
Sta. 4721. Jan. 15,1905. Lat.8°7.5’S., long. 104°10.5’W. 300fms.tosurface. 6 specimens. 
Sta. 4722. Jan. 16,1905. Lat. 9°31’S., long. 106° 30.5’ W. 300fms. to surface. 6 specimens. 
Sta. 4730. Jan. 20,1905. Lat. 15°7’S., long. 117° 1.2’W. 300 fms. to surface. 1 specimen. 
Sta. 4734. Jan. 22,1905. Lat. 17° 36’S., long. 122° 35.6’ W. 300 fms. to surface. 1 specimen. 
Sta. 4742. Feb. 15,1905. Lat. 0°3.4’ N., long. 117° 15.8’ W. 300fms. to surface. 1 specimen. 
The adult males from the East Pacific — and from the Indian Archipelago — 
have no denticle posteriorly on the lateral margins of the carapace, while such 
denticles are found in males from the North Atlantic. 
