66 A EEVISION OF THE ASTACID^. 



Girard does not describe his (7. Bartonii, but cites as synonymous A. Bar- 

 ton'd of Fabricius, Latreille, Bosc, Say, Harlan, and Gould, and A. cilians of 

 Eafinesque. His localities are Foxburg, Carlisle, and Berwick, Pa. Hagen 

 examined a specimen from the latter locality, communicated by Stimpson, 

 undoubtedly one of Girard's types. This specimen agreed perfectly with 

 Hagen's C Bartonii from the Schuylkill River. There is now in the col- 

 lection of the Academy of Natural Sciences of Philadelphia a dry female 

 specimen labelled " C. Bartonii'*. Cohaxie [Coxsackie?]," in the same hand- 

 writing as the other species of Girard mentioned on j^age 11. It is the 

 typical Eastern form of C. Bartonii, with two longitudinal rows of dots in the 

 areola, narrow antennal scale, and short, quadrangular rostrum. 



Girard also describes G. montanus, sp. nov., C. longuhs, sp. nov., C pusillus, 

 sp. nov., and C. rohustus (Raf ). The types of C. montanus came from the 

 Alleghany regions in Maryland, Virginia, and West Virginia. A 3'oung 

 second-form male type from Greenbrier River, W. Va., was compared by 

 Hagen, and deemed identical with C. Bartonii. The young male in the Phila- 

 delphia Academy, labelled " C. montanus ? James River, Va.," said by Hagen 

 to be identical with the type of C. montanus, has been examined by me. The 

 rostrum is more oval than in the common form of C. Bartonii, the antennal 

 scale broader near the tip, the areola more punctate, Avith the dots irregu- 

 larly disposed over the whole field of the areola. It cannot be separated 

 specifically from C. Bartonii. 



The type of C. longidu^, from the Middle States, was also examined by 

 Dr. Hagen, and thought to be a deformed specimen of C. Bartonii. " The 

 fingers are cylindrical, very widely separated at the base, and bearded in 

 this place and inside of the external finger, along the basal half .... The 

 other differences quoted by Mr. Girard, and taken from the shape of the 

 rostrum and the breadth of the areola, are not important enough to warrant 

 a specific separation." According to Girard's description the areola is very 

 broad, the rostrum much narrower and longer than in C. Bartonii and slightly 

 concave on the sides. The specimens described above under the name of 

 C. Bartonii, var. longirostris, perhaps are the same form as C. longulus. They 

 agree with Girard's de.scription in the length of the rostrum, and the ex- 

 ternal finger is bearded within in accordance with Hagen's description of 

 Girard's type. 



Girard's type o( C. pusi/lns came from the stomach of a, Lota maculosa taken 

 in Lake Ontario three miles from shore, off Oswego, N. Y. Compared with 



