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. -184 PDF (2.0 MB)
A List of the Crustacea of Wisconsin. 181 trum. The specimen has peculiar hooks on third segment of second pair of thoracic legs. C. propinquus (Girard) is also a very abundant species, generally found in company with C. virils. It is our smallest species. Of hundreds in my collection from various parts of the state, the largest measures only two and one-fourth inches from tip of telson to tip of rostrum. C. placdus (lHagen) occurs sparingly in Fox river, from which stream I have received a single individual. C. rusticus (Girard) has been found in Lake Superior. C. v} sconsicenis (Bundy). Bul. No. 1, 111. Alus. Nat. list., 1876. Rostrum wide at base, much rnarrower in front, not depreszed, slightly concave above and nearly smooth, margins not elevated above eyes, acumen short; cephalothorax oval, punctate above and granulate on sides; lateral teeth but slightly developed; areola narrow, wider behind; antennae slender, shorter than body; epistoma variable, wider than long, lateral angles prominent; third rmaxillipedes bearded within, and below at base only; car- pus with a group of small sharp teeth on inner margin; two rows of teeth on lower aspect of brachium; third segment of third thoracic legs hooked; first abdominal legs of male long, thick, bind, nearly straight, reaching when folded under thorax to base of first pair of legs; external ramus longer, with recurved tip, inner ramus swollen near short, acute, obliquely incurved apex. Racine and Normal, Ill.: C. dtldilis (Bundy). Bulletin No. 1, Ill. Mus. Nat. Hist., 1876. This crawfish was found in the Little Baraboo river at Ironton, in company with C. psropinquuis. A single individual was also found in the Wisconsin river at Sauk City. Rostrum wide, quadrangular, slightly concave above, teeth prominent, margins nearly parallel, acumen short and flat; cepha- lothorax slightly depressed, punctate above, granulate on sides; lateral teeth acute ; dorsal area narrow, widest behind; antennal plates somewhat longer than rostrum ; antennae slender, reaching to base of telson; epistoma wider than long, truncate; third max- illipedes batbate on inner and lower sides; hands with two rows of teeth on inner margins ; contiguous margins of fingers tuber-
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