258 THE SCHIZOPODA. 



Not a specimen of this species was found among the material secured in 

 1904-1905, but Dr. Agassiz has taken a number of specimens at several locali- 

 ties in the Fiji Islands in 1897. 



Fiji Islands. Off Vatu. Dec. 9, 1897. 30 fms. 12 specimens. 



Fiji Islands. 3 m. South of Nanuka. Dec. 10, 1897. 50 fms. 1 specimen. 



Hji Islands. 6 m. South of Suva lightship. Dec. 10, 1897. 100 fms. 1 specimen. 



Fiji Islands. 5 m. South of Suva lightship. Dec. 10, 1897. 100 fms. 4 specimens. 



Fiji Islands. 3 m. South of Suva lightship. Dec. 11, 1897. 100 fms. 2 specimens, both adult males. 



Fiji Islands. 5 ra. South of Suva lightship. Dec. 16, 1897. 100 fms. 1 specimen. 



Fiji Islands. Eastern entrance of the Nibengha passage. Dec. 16, 1897. Surface. 14 specimens. 



Fiji Islands. Eastern entrance of the Nibengha passage. Dec. 16, 1897. 100 fms. 2 specimens. 



Remarks. — All the specimens, excepting two, are immature and many among 

 them less than half grown or merely larval stages. In the following chapter 

 on the larval stages such larvae are mentioned, especially with reference to their 

 differences from the larvae of Nyctiphanes simplex H. J. H. 



Distribution. — Sars's specimens were from the Southeastern coast of Au- 

 stralia, from the Arafura Sea and off Mindanao, Philippine Islands. The 

 "Siboga" captured enormous multitudes at a large number of Stations in the 

 Indian Archipelago. The Copenhagen Museum possesses some specimens 

 taken at Lat. 24° 17' N., long. 118° 15' E., between Formosa and China (Capt. 

 Suenson) and many specimens from the Bay of Bengal ("Galathea" Exp.). 

 Stebbing mentioned it "as observed in great numbers N. 10° W. of Cape St. 

 Blaize, 33 miles (South coa.st of Africa). 



This pecuhar form seems always to live not very far from land, and it has 

 most frequently been taken near the surface. 



NEMATOSCELIS G. O. Sars (1883). 



The account of this genus given by Sars in the "Challenger" Report is 

 somewhat deficient, because his material was very poor; he had in reality no 

 males and of only one species a sufficient numbers of females. In recent papers 

 I have pointed out interesting sexual differences and various characters in maxil- 

 lulae, thoracic legs, and copulatory organs. And it may be useful to reprint 

 here the addition to the generic description, etc. given in 1911. 



In the female second and third peduncular joints of the antennulae are 

 slender and rather long; in adult males these joints are conspicuously thicker, 

 second joint somewhat and the third considerably shorter than in the other 

 sex; peculiar lobes or processses on the.se joints are always wanting. Sixth 

 pair of legs with the exopod well developed in both sexes, the endopod two- 

 jointed and longer than the exopod in the female, wanting in the male. The 



