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Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume V (1877-1881)

Bundy, Will F.
A list of the crustacea of Wisconsin,   pp. [177]-184 PDF (2.0 MB)


Page 182


182     Misconsin Academy of Sciences, Arts, and Lctters.
culate; costate and punctate above, outer one hairy at base; third
segment of third thoracic legs hooked; first abdominal legs of
male long, bifid, nearly straight, outer ramus longer, recurved,
inner ramus more abruptly curved near apex, not enlarged near
apex as in C. wisconsinensis; tubercle or inner basal angle
small.
  C. yracidlis (Bundy). Bulletin No. 1, Ill. Mus. Nat. list., 1876.
Rostrum short, wide, depressed, toothless, concave above, nearly
right-angled in front; cephalothorax laterally compressed, smooth
above, granulate on sides; areola wanting;   cephalic carinma
prominent, ending behind in callosities; antennal plates
small and narrow; eyes small; antennae short and slender;
toma rounded in front; third maxillipedes hairy on inner
lower aspects ; hands large, smooth below, punctate above, stroi
toothed on inner margins; fingers slender, gaping at base,
pressed, contiguous margins irregularly tuberculate, outer
incurved, wide at base, movable one longer, tuberculate on o
margin near base; carpus with one large and several small t
on inner margin; braehium with two rows of sharp teeth on Ic
margin; third joint of third thoracic legs of male hooked; first
dorninal legs of male truncate, with several small apical teeth,
inner one longest, slender and directed obliquely outward; b
of these legs narrow and inserted into deep sinuses in the first
dominal segment; interpedal space long, narrow, reaching half
from small basal tubercle to apex of legs.
  The second form male has shorter, less gaping fingers, sm:
hooks on third thoracic legs and articulated first abdominal I
  The annulus of the female is movable, small and round,
consists of two half-rings, each of which embraces one end of
other. Two tubercules on the anterior border are separated
a slight furrow that widens behind, covering the posterior bor
  It occurs on the prairies in the vicinity of Racine, where it
found by Dr. P. R. IHoy, to whose kindness I am indebted
specimens.
  It is also found abundantly along water courses in early sp
at Normal, Ill. (Prof. 13orbes).


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