1913] Esterhj: Copcpoda of the San Diego Region 185 



Scolecithrix elephas n. sp. 



PI. 10, figs. 8, 17; pi. 12, figs. 59, 62 



Adult female. The species may be easily recognized by the 

 shape of the head in profile (pi. 10, fig. 8) ; the rostrum is bifid 

 and remarlvably long and heavy in the basal two-thirds, with a 

 delicate filament at the end. The drawing in plate 10, figure 17, 

 shows the shape of the last thoracic segment and the proportions 

 of the abdominal segments. 



The anterior antennae are 23-.iointed and 1.6 mm. long. The 

 outer ramus of the first foot is shown in figure 59 and the fifth 

 foot in figure 62 of plate 12. The third joint of the fifth foot 

 tapers to an awl-lilie point ; the outer margin near the base carries 

 a small spine, and there is a heavy toothed bristle on the inner 

 margin of the joint. There is a row of seven or eight spines on 

 the distal margin of the second joint. 



Length: 1.6 mm. (cephalothorax 1.2 mm.). 



Coloration : Semi-transparent and without pigment. 



Occurrence: Haul 2002. 



Scolecithrix longirostris n. sp. 



PI. 10, figs. 12, 19; pi. 12, fig. ,51 



Adult female. The head is smoothly rounded, with a very 

 long, heavy rostrum (pi. 12, fig. 19). The sides of the last 

 thoracic segment are broadly rounded, as shown in plate 10, 

 figure 12, which also serves to indicate the proportional lengths 

 of the abdominal segments. The head is fused witli the thorax 

 and there is no line between the fourth and fifth segments of the 

 thorax. 



The anterior antennae are 23-jointed and 1.8 mm. long. The 

 other appendages of the head do not present noticeable features ; 

 the maxillipeds are broken. The outer ramus of the fii*st foot 

 (pi. 12, fig. 51) is distinctive; there is no trace of a fifth foot. 



Length: 2.07 mm. (cephalothorax 1.6 mm.). 



Coloration: "Without pigment and somewhat translucent. 



Occurrence: Haul 2134. 



