ON THE WYANDOTTE CAVE AND ITS. FAUNA. 419 
Descriptions of Species from the Wyandotte Cave. 
. ORCONECTES Cope. 
Genu Similar to Cambarus, but with the eyes MPSA with the cornea 
small oa abby favatted. The present g genus embraces two species, the O. inermis of the 
Wyandotte and the O. pellucidus of the 
0. INERMIS Cope, sp. nov: This species is near the 0. pellucidus, and differs as fol- 
ars: oul proportions are Cya ally less slender, and the spines less developed. The 
bly 
r 
ontal process is considera 
flottar. the terminal spine Fig. 116. 
5 
ar 
i is Cope, nat. size. 
Sa Spec ies. The shell of the Orconectes inermis 
cale jog etiken kpa September was very soft on pig ples gay yy eaS but pe 
i a „m = 
ay Pi. trom the thorax marg siy Ds. Ton ett pe Neliform 8 cnet of first legs, .024; wic i 
The single st! movable (last) segment of d lucidus 
in the N use Pecimen it ae species has haka compared ais font Vfl oe ae "ty on 
Ta e Academy Natural Sciences, one of whic ; 
ERR wee to are constant. "They. vise also exhibited by Dr. Lagat a figure,* 
pied by Dr. pcos the cheles, which is less than in our specimens. s figure 
CÆCIDOTEA Picken 
C. mr pai 
oe 'Rocermara Cope, sp. nov. “Unknown crustacean with external egg-pouc 
nn. Magaz. Nat, ‘Hist., 1871, November. 
PET or the Museum Comparative Zoology, Monograph of the Astacide of North 
