66 A REVISION OF THE ASTACIDA. 
Girard does not describe his C. Bartoni’, but cites as synonymous A. Bar- 
toni’ of Fabricius, Latreille, Bosc, Say, Harlan; and Gould, and A. charts of 
Rafinesque. 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. Bartowi from the Schuylkill River. There is now in the col- 
lection of the Academy of Natural Sciences of Philadelphia a dry female 
specimen labelled “ O. Barton? Cohaxie [Coxsackie?],” in the same hand- 
writing as the other species of Girard mentioned on page 11. It is the 
typical Eastern form of C. Barton’, with two longitudinal rows of dots in the 
areola, narrow antennal scale, and short, quadrangular rostrum. 
Girard also describes C. montanus, sp. nov., C. longulus, sp. nov., C. pusillus, 
sp. nov., and C. rvobustus (Raf.). The types of C. montanus came from the 
Alleghany regions in Maryland, Virginia, and West Virginia. A young 
second-form male type from Greenbrier River, W. Va., was compared by 
Hagen, and deemed identical with C. Bartow. 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. Bartoni’, the antennal 
scale broader near the tip, the areola more punctate, with the dots irregu- 
larly disposed over the whole field of the areola. It cannot be separated 
specifically from C. Barton. 
The type of C. dongulus, from the Middle States, was also examined by 
Dr. Hagen, and thought to be a deformed specimen of C. Bartowi. “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. Bartoni, var. longirostris, perhaps are the same form as C. longulus. They 
agree with Girard’s description 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 of C. pusillus came from the stomach of a Lota maculosa taken 
in Lake Ontario three miles from shore, off Oswego, N. Y. Compared with 
