COPEPODS OF THE WOODS HOLE REGION 221 



AMPHIASCUS PARVUS Sars 



Figure 148 

 Amphiascus parvus Saks, Crustacea of Norway, vol. 5, p. 162, pi. 103, 1906. 



Occurrence. — A single female was obtained in a surface tow from 

 the wharf of the Bureau of Fisheries at Woods Hole, August, 1925. 

 The specimen was captured by C. H. Blake, who was working upon 

 copepods at the Marine Biological Laboratory. It was carefully dis- 

 sected and mounted, and the present author was kindly allowed to 

 examine the mount and drawings and to include 

 it in the present list. 



Distribution. — Coast of Norway (Sars). 



Color. — Body grayish white, somewhat darker 

 in the grooves between the segments ; contents of 

 the digestive tract more or less tinged with red; 

 eye brick red. 



Female. — Body slender, more than four times 

 as long as wide; urosome two-thirds as long as 

 metasome and nearly as wide, its segments with- 

 out spinules; caudal rami twice as wide as long, 

 the bases of both apical setae enlarged. First figure i 4 s . —Am- 

 antennae 8-segmented, the four terminal seg- maie'^Tffh^k'g* 



ments about half the length of the four basal 

 ones ; first exopod reaching but little beyond the center of the basal 

 endopod segment, its middle segment without a seta ; distal segment 

 of third exopod with four spines and two setae; distal segment of 

 fifth legs oval, with six setae, the two apical ones filiform, basal ex- 

 pansion not reaching the middle of the distal segment, obliquely trun- 

 cated, with five unequal setae. Total length, 0.45 mm. 

 Male. — Unknown. 



Remarks. — Again this is the first record of the species outside the 

 Norwegian coast. It may be recognized by its small size and by the 

 structure of the first and fifth swimming legs. 



AMPHIASCUS CINCTUS (Claus) 



FiGUKH 149 



Dactylopus c'mctus Claus, Die Copepodenfauna von Nizza, p. 27, pi. 3, 1S66. 

 Amphiascus cinctus Sars, Crustacea of Norway, vol. 5, p. 149, pis. 91, 92, 1906. 



Occurrence. — Found in limited numbers in Penzance Pond, Woods 

 Hole; Great Pond, Falmouth; Waquoit Bay, Falmouth; Senge- 

 kontacket Pond, Marthas Vineyard. 



Distribution. — Mediterranean (Claus) ; coast of Norway (Sars) ; 

 Adriatic (Pesta, Grandori) ; Gulf of Genoa (Brian). 



Color. — Body light yellowish white, the first three free segments 

 of the metasome a deep reddish pink, forming a wide transverse 

 band; there is also a longitudinal streak of very irregular width 

 along the midline of the dorsal surface; eye orange-red. 

 71937—32 16 



