L911] Esterly: Copepoda of tin San Diego Region. 321 



Euchirella propria n. sp. 

 PI. 27, figs.- 14, 20,; pi. 30, Hys. 67, 83; pi. 31, fig. 85. 



Adult male. The head is uncrested and smoothly rounded, 

 with a short, stout rostrum (pi. 27, figs. 14, 20). The cephalo- 

 thorax is 4-segmented and three and one-half times as long as 

 the abdomen with the furca. The abdominal segments are of 



about equal lengths except for flic anal segment which is so 

 short as to be almost invisible. 



The first foot (pi. 31, fig. 85) has a 2-jointed outer ramus 

 and the first joint is provided with two tiny spines. The fifth 

 feet are of the usual structure (pi. 3d, tig. S3), and the outer 

 ramus of the right foot is about four and a half times as long as 

 the greatest breadth of the second basal joint. 



Length: 5.6 mm. 



Coloration: The sides of the thorax, the abdomen, ami month-parts are 

 red. 



Occurrence: Station 1315, tow at. and vertical from, 320 f., sounding 

 330 f., July 19, 1906; station 1318, tow at, ami vertical from, 170 f., sound- 

 ing 330 f., July 19, 1906; station 1342, tow at, and vertical from, 1501, 

 sounding 330 f., July 21, 1906. 



This species was found in the collections with E. curticauda, 

 pulchra, simplex, galeata and rostrata, but I can discover no 

 other evidence for its being the male of an old species and have 

 therefore placed it in a species by itself. 



Euchirella rostrata Claus. 



PI. 29, fig. 52; pi. 30, fig. 66; pi. 32. fig. 116. 



Euchaeta hessei (male). Brady (1883), p. 03. pi. 20, figs. 1-13; 



pl. 23, figs. 11-14. 

 Euchirella rostrata (male). Cleve (1900), p. 4, pl. 2. figs. 1-14. 



Adult male. "While the males resemble the females in the 

 general form of the body, the presence of the fifth pair of feet 

 will distinguish the former from the latter; these organs in 

 /•.'. rostrata are quite unlike those in any other species i pl. 32. 

 fig. 116). Both feet are biramous; the inner ramus of the right 

 find is nearly twice as long as that of the left. The former is 

 of a peculiar shape, being bent at the end so that a hooked process 

 extends proximally. The outer ramus of the right foot is more 



