NEMATOSC'ELIS TENELLA. 26.3 



Diatribution.- The long list of Stations shows that A', yruciliti was wanting 

 in the most southern part of the area explored, viz. South of Lat. 20° S., that it 

 was very connnon between Lat. 20° S. and the hne, 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 Ortniann'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 N. tenella are also A'', graeilis; all Ortmann's 

 Stations in question are situated in the area where A". </ract7is was taken in 1904- 

 1905. Furthei^iore the species was taken at a number of Stations in the Indian 

 Archipelago by tlie "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-3c. 



1883. Nematoscelis tenella G. O. S.\rs, Forh. Vid. Selsk. Christiania for 1883, no. 7, p. 28. 

 1885. Nematoscelis tenella G. O. Sars, Challenger Rept., 13, p. 133, pi. 2.5, figs. 5-7 (young). 

 1910. Nematoscelis tenella H. J. Hansen, Siboga-Exp., 37, p. 110, pi. 15, figs. 4a-4ra. (With full 

 synonymy). 



Sta. 4637. Nov. 5,1904. Lat. 1° 31' N., long. 86° 32' VV. 300 fms. to surface. 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. 300 fms. to surface. 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. to surface. 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. 300 fms. to surface. 1 specimen. 



Sta. 4699. Dec. 25, 1904. Lat. 21° 39.5' S., long. 104° 29.8' W. 300 fms. to surface. 1 specimen. 



Sta. 4705. Dec. 28, 1904. Lat. 15° 15.3' S., long. 99° 19' W. 300 fms. to surface. 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. to surface. 1 specimen. 



Sta. 4721. Jan. 15, 1905. Lat. 8° 7.5' S., long. 104° 10.5' W. 300 fms. to surface. 6 specimens. 



Sta. 4722. Jan. 16,1905. Lat. 9° 31' S, long. 106° 30.5' W. 300 fms. 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. 300 fms. 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. 



