COPEPODA 



71 



63 (48, 56) Right endopodite of fifth foot of male equals or only slightly ex- 

 ceeds first segment of exopodite (,» 



64 (65) Terminal segment of right exopodite of male fifth fool ha> uhh^uc 

 ridge on posterior surface, lateral si)ine exceeds .scRment in 

 length Diaplomus lilhuijutrifuiniis Uvrtick liiijt 



The fifth ccphalothoraric soRmcnt i.i ir.r umjue 

 has a dorsal pnui-ss, and thi- «-nd«»p«>ditr* of the 

 fifth feet are commonly two M-Kmcntr<l. Ki.untl in 

 New Mexico and Colorado. As thr rvamr irvli- 

 Gates, this form was ori^nally <lt"x-ril>c«l l»y Her- 

 rick, from material coUectcil in All»u<iucr<iuc. N M. 

 It is found, however, from Colorado to thr City ol 

 Mexico, and seems to be a tyfiical fonn o< the 

 Southwest. 



Length of female. 1.7'' mm. 



Length of male, 1.58 mm. 



Fig. 1205. Diaptomus albuquerquensis. ^.dor- 

 sal process of female. X 180. B, fifth feet of 

 male. X 49. (Original.) 



65 (64) 



Terminal segment of right exopodite of male fifth foot (loes not 

 have oblique ridge on posterior surface; lateral spine short, 

 about one-half length of segment. 



Diaptomus novatncxicanus Merrick 1895. 



Fig. 1206. Fifth feet of 

 male Diaptomus novamexi- 

 canus. (After Herrick and 

 Turner.) 



F'ound in New Mexico. 

 Length of female, i.i t< 



66 (47) 



Terminal orocesses of left exopodite of fifth fcx-t of male digili- 

 ^form^dght endopodite shorter than first segment of exopc. 

 dite 



