NEMATOSCELIS TENELLA. 263 



Dislribuiion. — The Ions li^'^t f)f Stations shows that .V. grdciliti was wanting 

 in the most soutlieni part of the area explored, viz. Soutli of ].at. 20° !S., that it 

 was very common between Lat. 20'' S. and tlie hne, and that it was taken six 

 times North of the hne, northwards to near Lat. 16° N. The specimens from 

 the six first-named of Ortmann's Stations (1894) for jV. niicrops all belong to 

 iV. gracilis, excepting two specimens which belong to N. tcnclla (i. O. S. and are 

 mentioned iielow; furthermore the specimens from a single Station (from Lat. 

 12° 34' N.) referred by Ortniann to A', tcnclla are also A", (iracilis; all Ortmann's 

 Stations in (juestionare situated in the area where A'^. (/rrtc/Z/.s was taken in 1904- 

 1905. Furthermore the species was taken at a number of Stations in tiic Indian 

 Archipelago by the "Siboga," but is hitherto unknnwn from any other place 

 and is certainly wanting in the Atlantic. 



The list .shows also that small specimens ha\-e been taken a few times at 

 the surface, but that larger or full-grown specimens, with a single exception, 

 were always taken in tlie \ertical 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. Sars, Forh. Vid. Selsk. Christiania for 1883, no. 7, p. 28. 

 1885. Ncmaloscelis tenella G. O. Sars, Challenger Rept ., 13, p. 1.33, pi. 2.5, figs. 5-7 (young). 

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

 synonymy). 



Lat. r 31' N., long. 86' 32' W. 300 fms. to surface. 3 speciinens. 

 Lat. 0° 27' N., long. 87° 13' W. 300 fms. to surface. 1 specimen. 

 Lat. 4° 1.6' S., long. 89° 16.3' W. 300 fms. to surface. 1 specimen. 

 Lat. 17° 26.4' S., long. 86° 46.5' W. 300 fms. to surface. 1 specimen. 

 Lat. 18° 47.1' S., long. 89° 26' W. 300 fms. to surface. 5 specimens. 

 Lat. 21° 36.2' S., long. 94° 56' W. 300 fms. to surface. 3 specimens. 

 Lat. 22° 49.5' S., long. 97° 30.6' \\'. 300 fms. to surface. 1 specimen. 

 Lat. 24° 5' S., long. 100° 20' \V. 300 fms. to surface. 5 specimens. 

 Lat. 25° 27.3' S., long. 103° 29.3' W. 300 fms. to surface. 1 specimen. 

 Lat. 21° 39.5' S., long. 104° 29.8' W. 300 fms. to surface. 1 specimen. 

 Lat. 15° 15.3' S., long. 99° 19' W. 31)0 fms. to surface. 6 .specimen.s. 

 Lat. 12° 33.2' S., long. 97° 42' W. 300 fms. to surface. 7 specimens. 

 Lat. 2° 40.4' S., long. 90° 19.3' \V. 300 fms. to surface. 2 specimens. 

 Lat. 2° 18.5' S., long. 90° 2.6' ^V. 600 fms. to surface. 1 specimen. 

 Lat. 8° 7.5' S., long. 104° 10.5' W. 300 fms. to surface. 6 specimens. 

 Lat. 9° 31' 8., long. 106° 30.5' W. 300 fms. to surface, fi specimens. 

 Lat. 15° 7' ,S., long. 117° 1.2' W. 300 fms. to surface. 1 specimen. 

 Lat. 17° 36' S., long. 122° 35 6' W. 300 fms. to surface. 1 specimen. 

 Lat. 0° 3.4' N., long. 117° 15.8' W. .301) fms. to surface. 1 specimen. 



The adult males from the East Pacific — and from tlH< Indian .Vrchipelago — ■ 

 have no denticle posteriorly on the lateral margins of the carapace, while such 

 denticles are found in males from the North Atlantic. 



