COPEPODS OF THE WOODS HOLE REGION 



365 



a broad and bluntly rounded process at the inner distal corner, which 

 extends its entire length beyond the tip of the ramus. First antenna 

 5 -segmented, the second segment longer than the three terminal seg- 

 ments combined; third and fourth segments of second antenna 

 shorter than the second segment ; fourth 

 endopod shorter than the exopod, with 

 two apical flanged spines of equal 

 length. Total length, 3.25-4 mm. 



Male. — Body two and one-fourth 

 times as long as wide; first four free 

 segments each wider than the head, the 

 second segment the widest; corneal 

 lenses invisible in dorsal view. End 

 segment of second endopod with three 

 inner setae, three lanceolate flanged 

 spines and two clawlike spines around 

 the tip, the largest lanceolate spine on 

 the outer margin, with a small second- 

 ary spine outside its base. Total length, 

 3.75-5.15 mm. 



Remarks. — This species is easily rec- 

 ognized by its exceptional length in 

 comparison with its breadth and by the 

 broad process at the inner corner of the 

 caudal ramus. Judged from the dis- 

 tribution given above, it is evidently a 

 tropical form, brought up to the south- 

 ern limit of the present area in the Gulf Stream. Eathbun noted 

 great quanities of Salpa caboti in the same towing, and probably 

 this is the host of the species. 



SAPPHIRINA AURONITENS Glaus 



Figure 222 



Sappliirina auronitens Glaus, Die frei lebenden Copepoden, p. 153, 1863. — Gies- 

 BEECHT, Fauna und Flora des Golfes von Neapel, vol. 19, p. 619, pis. 4, 

 53-54, 1892. 



Occurrence. — Both sexes were obtained in a surface tow at Stations 

 1107 and 1108, Fish Hawk^ south of Nantucket ; both sexes also in a 

 surface tow on Georges Bank, September, 1874. 



Distribution. — Messina (Glaus, Haeckel) ; Naples (Giesbrecht) ; 

 Adriatic (Steuer, Pesta) ; Indian Ocean (Thompson and Scott) ; 

 Malay Archipelago (A. Scott). 



Color. — General body color bluish gray, finely reticulated with 

 black lines on the dorsal surface. The meshes of this network are 

 very irregular in size and shape, but are more often diamond-shaped 

 71937—32 25 



Figure 221. — Sapphirina angusta: 

 a J Female, dorsal ; i, second 

 antenna of female ; c, fourth 

 leg of female 



