258 THK SCHI/OPODA. 



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

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

 ties in the Fiji Islands in 1897. 



Fiji Islands. OffVixtu. Dec. 9, 1897. 30 fins. 12 specimens. 



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



Fiji Islands. 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 si)ecimens, both adult males. 



Fiji Islands. 5 m. 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. 



Reuiarks. — All tlie specimens, excepting two, are innnaturc and many among 

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

 on the lar\;il stages such lar\-ae are mentioned, especially with reference to their 

 differences from the larvae of Nydiphanes 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.). 

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

 Blaize, 33 miles (South coast of Africa). 



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

 most frecjuently been taken near the surface. 



NEMATOSCELIS G. O. Sars (1883). 



Tlie accoimt of this genus given l\y 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 tlie generic description, etc. given in 1911. 



In the female second and thirtl petluncular joints of the antennulae are 

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

 scc;ond joint somewhat and the third considerably shorter than in the other 

 sex; peculiai- lobes or jirocesses on these joints are always wanting. Sixth 

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

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



