NEW SUBTERRANEAN COPEPODS—JAKOBI AND SILVA 393 
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Ficure 2.—Parastenocarts hurdi, new species. 
Male: General form like female. In contrast with P. brasiliba- 
thynellae, only A.1 and P.3 show high sexual dimorphism; P.2, P.4, 
and furca are without or with only small sexual differences. A.1 
haplocer, third article with a large sensorial seta. Enp. P.3 very 
characteristic. First article Exp. strongly chitinized and curved, 
jointed to the second by a special articulation, second article bearing 
two sabre-shaped bristles of different length. 
Length, 220 microns. 
Types (deposited in the U.S. National Museum): Holotype male, 
USNM 104402; allotype female, USNM 104403, and two male para- 
types. 
Type locality. Lagéa, Santa Catarina, Brazil (cf. “Ecology,” 
p. 395). 
Named hurdi in honor of Dr. Paul Hurd, Department of Ento- 
mology, University of California, Berkeley, Calif. 
Discussion 
With regard to Parastenocaris brasilibathynellae, it is remarkable 
that A.1 has only six, rather than the usual seven joints, and that the 
rostrum is lacking. The terminal article of Exp. P.1 has five bristles, 
as in P. chelifer Delachaux from Surinam. The first article of Enp. 
P.l of P. brasilibathynellae has one inner marginal bristle, which is 
absent in many species, e.g., P. hurdi, P. brevipes, P. chelifer, P- 
