196 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Pacific records: Esterly, 1905; Scott, 1909; Farran, 

 1929; Mori, 1937; Wilson, 1942; Brodsky, 1950; Wilson, 

 1950; Tanaka, 1953; Chiba, Tsuruta, and Maeda, 1955; 

 Nagaya et al., 1955; Chiba, 1956; Tanaka, 1957b; 

 Yamazi, 1958a. 



Vessel : Station Occurrence 



Hugh M. Smith __ 132 1 male, 3.20 mm. 



Do 144 1 female, 3.70 mm. 



Do 153 2 females, 3.61, 3.70 



mm.; 3 males, 

 3.33 mm. 



Do 178 1 female, 3.80 mm. 



 Do 63 1 male, 3.33 mm. 



Remarks: Fleminger (1956) is no doubt cor- 

 rect in placing Sars' (1905) brevis (described 

 from female) in synonymy with Giesbrecht's 

 (1888) amoena (described from male). This 

 synonymy is further substantiated by Mori's 

 (1937) description of the female of amoena. 

 Although Mori did not describe the fourth pair 

 of feet, the total length, abdomen-cephalothorax 

 ratio, length of the first antennae, length of the 

 endopod of the second antennae and the num- 

 ber of setae on the distal segment of the endo- 

 pod of the second antennae clearly establish 

 that Mori's E. amoena and Sars' E. brevis are 

 unispecific. 



As Fleminger has stated, Wilson's synonymy 

 of E. amoena under E. bella is an error. The 

 male of E. bella was described by Sewell (1947) 

 and Vervoort (1949) ; neither author was cited 

 by Wilson. It should be noted, however, that 

 Dr. Wilson's paper was published nine years 

 after his death. 



Euchirella curticauda Giesbrecht, 1888 



(Plate 10, figs. 11-14) 



Pacific records: Esterly, 1906; Scott, 1909; Johnson, 

 1942; Mori, 1942; Wilson, 1942; Davis, 1949; Brodsky, 

 1950; Wilson, 1950; Anraku, 1952; Tanaka, 1953; 

 1957b. 



Vessel : 

 Orsom 



Station Occurrence 



-_ 10 2 females, 3.52, 3.62 



mm. 



Remarks: This species is recognized by the 

 presence of a crest, absence of a rostrum (fig. 

 12) and the presence of a comb of spines on 

 the first basipodal segment of the fourth pair 

 of feet (fig. 14). 



Euchirella maxima Wolfenden, 1905 

 (Plate 10, fig. 15) 

 Pacific records: Scott, 1909; Wilson, 1950. 



Vessel: Station Occurrence 



Hugh M. Smith __ 29 1 female (stage V), 



5.79 mm.; 1 male 

 (stage V), 5.70 

 m.m. 



Remarks : A male and female were obtained 

 in the 500 m. collection made at the above sta- 

 tion. Both sexes have a crest on the forehead. 

 Sewell (1929) has described the stage V indi- 

 viduals of this species. 



Pseudochirella sp. 



Vessel : Station Occurrence 



Hugh M. Smith __ 29 4 juveniles, 6.93-7.14 



mm. 



Remarks: These large juvenile copepods 

 could not be assigned to a species. They were 

 obtained from the 500-meter plankton tow. 



Chirundina streetsi Giesbrecht, 1895 



(Plate 11, figs. 1-4) 



Pacific records: Esterly, 1906; Scott, 1909; Farran, 

 1929; Johnson, 1942; Brodsky, 1950; Wilson, 1950; 

 Tanaka, 1953; 1957b. 



Vessel : 



Horizon 



Station Occurrence 



__ 32 1 female, 4.94 mm. 



Remarks : This species is distinguished from 

 the following one by its large size, pronounced 

 crest on forehead (fig. 1), and the presence of 

 2 spines on the first exopodal segment of the 

 first feet (fig. 4). 



Chirundina indica Sewell, 1929 

 (Plate 11, figs. 5-20) 

 Pacific records : None. 



Vessel : Station 



Hugh M. Smith __ 63 __. 



Occurrence 

 1 female, 4.66 mm. 



Remarks: I have compared in some detail 

 (figs. 5-20) the present species with the de- 

 scriptions of C. indica provided by Sewell 

 (1929, 1947). On the basis of his description 

 the latter species is distinguished from C. 



