370 



BULLETIN- 15 8, UNITED STATES NATIONAL MUSEUM 



most gorgeous copepod in his entire collection. The dorsal surface 

 is reticulated and brilliantly iridescent, the meshes filled with all the 

 colors of the rainbow indiscriminately arranged. In general the 

 head and the middle of the thorax contain the reds and yellows, 

 while the margins of the thorax and the urosome contain the blues 



and greens. The caudal rami are not 

 iridescent, but are sometimes colorless and 

 sometimes spotted with red. (Rathbun.) 

 Fennale. — Head wider than long, widest 

 just behind the center; second segment as 

 wide as the first and considerably longer, 

 the rest of the body tapered ; caudal rami 

 twice as long as wide. Third and fourth 

 segments of second antenna the same 

 length, the two together half as long as the 

 second segment; fourth endopod longer 

 than the exopod, its two apical spines 

 equal. Total length, 2.4-2.85 mm. 



Male. — Head wider than long, nar- 

 rowed anteriorly; corneal lenses on the 

 ventral surface some distance behind the 

 frontal margin; second antennae longer 

 and more slender than in the female, the 

 last two segments together nearly as long 

 as the second segment. Terminal segment 

 of second endopod with three large lance- 

 olate flanged spines, three inner setae, two 

 curved claws, and two small spines around the apex. Total length, 

 3.5-3.8 mm. 



Remarks. — The present record of the species is the farthest away 

 from the Tropics it has thus far been found. The transfer of the 

 corneal lenses to the ventral surface of the head in both sexes is an 

 important character. 



SAPPHIRINA VORAX Giesbrecht 



FlGtTRE 226 



SappMrina vorax Giesbrecht, Fauna uud Flora des Golfes von Neapel, vol. 19, 

 p. 619, pis. 3, 52-54, 1892. 



Occurrence. — Taken in surface tows at Stations 925, 951, 1028, 1031, 

 1039, Fish Hawk, south of Marthas Vineyard in the Gulf Stream. 



Distribution. — Indian Ocean (Giesbrecht) ; northern Atlantic 

 (Cleve) ; Mediterranean, tropical Atlantic (Giesbrecht) ; Malay 

 Archipelago (Cleve). 



Color. — Body of female faint yellowish white, with transparent 

 rounded spots near the lateral margins of each segment ; anal seg- 



FiGURE 225. — Sapphirina ovat- 

 olanceolata: a. Female, dor- 

 sal ; &, female, second anten- 

 na ; c, female, fourth leg 



