CAMBAKUS. 5 



In tlie uext number of tlie American Naturalist, Aug., 1872 (Vol. VI. p. 494), Ilagen 

 doubts the specific difference of tlie two cave forms, and ojjpnses the establishment of a 

 new genus based on the rudimentary condition of the eyes. 



1872. In a memoir " Ueber Cnbanische Crustaceeu" (Arch. f. Naturgesch., XXXVIII. 

 Jahrg., Bd. I. pp. 77-147), E. v. Martens describes Camharus Cuhcnsis Erichs. from Cuba, 

 and Camharus Montezuma'-, var. nov. tridcns, from Mexico. Short diagnoses of C. Cuhcnsis 

 Erichs., C. Wiegmanni Erichs., C. Mexicanus Ei'ichs., C. Aztecus Sauss., and C. Montczumm 

 Sauss., are added. Concerning tlie identity of C. Cuhcnsis Saus.s. and C. consohrinus 

 Sani5s., Vuu Martens is doubtful ; but he tliiuks it probable, from specimens sent to the 

 lierlin Museum by Dr. Gundlach, tliat tliere is a second Cuban Camharus agreeing with 

 C. Cuhcnsis in the shape of the rostrum, but differing from it in the sexual appendages. 



1873. In a paper " On the Cave Fauna of Indiana" (Fifth Ann. Rep. Peabody Acad. 

 Sci., Salem, pp. 93-97), A. S. Packard, Jr. communicates the results of a comparison of 

 the blind Cambari from the IMannuoth and Wyandotte Caves. He concludes that they 

 are one and the same species, and doubts, with Hagen, the validity of a genus based on 

 the atrojjhy of tlie visual organs. 



1873. Dr. Charles C. Abbott prints, in the American Naturalist, Vol. VII. pp. 80-84, 

 " Notes on the Habits of certain Crawfish." The observations were made at Trenton, 

 N. J., upon three species, — "C. acutus Gir." (6*. Blandinr/ii), G. affinis, and C. Bartonii. 

 Specimens of all three of these species, received from Dr. Abbott, are in tlie Museum of 

 the Peabody Academy of Science, Salem, Ma.ss. 



1874. Prof S. I. Smith, in a paper on tlie Crustacea of the Fresh Waters of the 

 United States, in U. S. Fish Commissioner's Ileport for 1872 and 1873, gives a list of 

 the Astacidfo of tlie Nortliern United States east of tlie Jlississippi Eiver (pp. 637-G39). 

 Tiiis list is compiled from Hagen's Monograph, but adds new localities for C. 2i)'opin- 

 quus and C. Bartonii. Orconectes inermis Cope is considered a synonym of Camharus 

 ■jicUucvIks. 



1874. In " Eemarivs on the ilammotli Cave and some of its Animals " (Bull. Essex 

 Inst., Vol. VI. pp. 191-200), Mr. F. W. Putnam speaks of the association of C. peUucidus 

 and C. Bartonii in the ^lammoth Cave of Kentucky. The occurrence of C. pcllucidus 

 near the entrance of another cave several miles from Mammoth Cave is noted, and obser- 

 vations are added on the color of cave specimens of C. iKllucidus and C. Bartonii. 



1875. Substantially the same observations are again printed by ]\Ir. Putnam in Proc. 

 Boston Soc. Nat. Hist., Vol. XVII. pp. 222-225. 



1875. "On some of tiie Habits of the Blind Crawfish, Camharus pellucichts, and the 

 Ileproduction of lost Parts." By F. W. Putnam. Proc. Boston Soc. Nat. Hist., Vol. XVI II. 

 pp. 16-19. In tliis comnnniication Jlr. Putnam treats of the habits, coloration, exuvi- 

 ation, and restorati(ni of lost parts in C. pcllucidus and C. Bartonii. The observations 

 were made upon living specimens, brought to Cambridge, Mas.s., from tlie Mammoth Cave. 

 The specimens are now preserved in the Museum of Comparative Zoology. One of the 

 specimens of C jmllucidus lived upwards of nine months in confinement, exposed to the 

 full glare of day. 



1875. In an essay " On the Antiquity of the Caverns and Cavern Life of tlie Ohio 

 Valley" (Mem. Boston Soc. Nat. Hist., Vol. II. p. 362; also in Mem. Ky. Geolog. Surv., 

 Vol. I. Part T., 1876), Professor N. S. Slialer speculates on the origin of the blind 

 Camharus jn'llucidus of the Mammoth Cave. (See p. 41.) 



1875. Brocchi, in his "Recherches sur les Organes Genitaux Males des Crustac^s 

 Ddcapodes " (Ann. Sci. Nat., 6" S^rie, Zool. et Paleontol., Tom. II. Art. 2), figures the first 



