40 A REVISION OF THE ASTACIDA. 
15. Cambarus pellucidus. 
Astacus pellucidus, TeuKamey, Arch. Anat., Physiol. u. wissensch. Med., 1844, p. 383. 
Astacus (Cambarus) pellucidus, Wricuson, Arch. Naturgesch., XII. Jalirg., 1. 95, 1846. 
Astacus pellucidus, GrpBus, Proc. Amer. Assoc. Ady. Sci., 3d Meeting, p. 195, 1850. (No description.) 
Cambarus pellucidus, GrRard, Proc. Acad. Nat. Sci. Phila, VI. 87, 1852. (No description.) 
Cambarus pellucidus, Hacen, Il. Cat. Mus. Comp. Zool., No. HI. p. 55, Pl. I. figs. 68-71, Pl. IIT. fig. 148, 
Pl. VI., 1870. — Amer. Naturalist, VI. 494, 1872. 
Cambarus pellucidus, Packarp, Amer. Naturalist, V. 750, fig. 131 (after Hagen), 1871.— Fifth Aun. Rep. 
Trustees Peabody Acad. Sci. for the Year 1872, p. 94, 1878. 
Orconectes pellucidus, Corn, Amer. Naturalist, VI. 410, 419, 1872.— Third and Fourth Ann. Rep. Geolog. 
Surv. Indiana, pp. 162, 173, 1872. 
Orconectes inermis, Corn, Amer. Naturalist, VI..410, 419, 1872. — Third and Fourth Amn. Rep. Geolog. Surv 
Indiana, pp. 162, 178, 1872. 
Cambarus pellucidus, Smitu, Rep. U. 8. Comm. Fish and Fisheries for 1872 and 1873; p. 689, 1874. (No 
description.) 
Cambarus pellucidus, PutNaM, Proc. Boston Soc. Nat. Hist., XVII. 222, XVIII. 16, 1875. (Habits.) 
Cambarus pellucidus, Faxon, Proc, Amer. Acad. Arts and Sci., XX. 189, 1884. 
Known Localities. — Kentucky: Mammoth Cave and other caves in Ed- 
monson Co. Indiana: Wyandotte Cave, Crawford Co. ; cave in Bradford, 
Harrison Co. 
The earliest notice of the blind crayfish of the Mammoth Cave occurs 
in the Proceedings of the Academy of Natural Sciences of Philadelphia, 
Vol. I. p. 175. In the record of the meeting of the Academy on May 24, 
1842, the donation of a specimen is thus acknowledged: “ A white eyeless 
crayfish (Astacus Bartow?) .... from the Mammoth Cave, Kentucky, about 
21 miles from the entrance. Presented by W. T. Craige, M. D.” 
From a “ Notice of the Blind Fish, Crayfish, and Insects from the Mam- 
moth Cave, Kentucky,” communicated by William Thompson to the Annals 
and Magazine of Natural History (Vol. XIII. p. 111, February, 1844), I quote 
the following : — 
“ At a meeting of the Belfast Natural History and Philosophical Society, 
Jan. 17, 1844, Mr. Thompson, the President, called attention to specimens 
of the Blind Fish, Crayfish, and Locusts from the great Mammoth Cave in 
Kentucky, procured in the month of May last, specially for the Society, by 
the kind attention of our townsman, Gordon A. Thomson, Esq.. on his visit 
to the cave. They are perhaps the first examples of their respective species 
brought thence to Europe. 
“The cave itself is popularly known from having been described in 
‘Chambers’s Edinburgh Journal’ for 1838, Vol. VI. p. 234; and more recently, 
at least in this town, from a letter by the Rev. Wm. Murphy, St. Mary’s 
