362 APPENDIX. 



hind, darker brown anteriorly; young with rhomboid dorsal 

 blotches. V. P. 182-211. L. 50 to 60. Southern States ; recorded 

 by Hurter from Mo. (Lat., whip.) 



Page 200: 



583 b. Crotalus confluentus (Say). PRAIRIE RATTLESNAKE. 

 Yellowish brown with a series of subquadrate dark blotches, with 

 the corners rounded and the anterior and posterior sides frequently 

 concave, the exterior convex ; light superciliary line, one scale 

 wide, reaches the second scale rpw above commissure at corner of 

 inouth ; dark postocular patch starts from below anterior angle of 

 eye. Distributed between Long. 9G y and Upper Missouri Valley 

 in the E., west to main divide of Rky. Mts. ; 33 Lat. in the South 

 and 50 Lat. in the N. 



Page 202. 



297 b. Crotaphytus (Holbrook). Femoral pores present; 

 head without spines ; occipital scale small ; a transverse gular 

 fold ; tail much longer than head and body ; tympanum distinct ; 

 dorsal scales small, (/cporos, rustling: (pvrov, plant.) 



590 b. Crotaphytus collaris (Say). Color above greenish 

 with small yellowish dots and more or less obscure dusky cross- 

 bars ; head more brownish ; across the shoulders two black bands 

 with a broad yellowish band between, below whitish. L. 12 inch. 

 Mo. to Texas. 



Page 211. 



623 b. Terrapene triunguis (Agassiz). Three digits on the 

 hind foot ; carapace moderately oval, keeled ; ground color 

 dark-brown or olive-yellow, much mottled with yellow. Mo. and 

 South. (T. Carolina and ornata have 4 digits in the hind foot.) 



APPENDIX TO 



BY the agreement of the American Ornithologists' Union a small number 

 of names of genera are set aside because they are nearly but not quite identi- 

 cal with other names of earlier date. This I have followed under pro- 

 test. The only practicable rule in such cases in my judgment is to regard 

 any two words as different unless actually spelled alike regardless of all ques- 

 tions of etymology. 



In my judgment the following earlier names should be restored : 



458. EREMOPHILA Boie instead of Otocoris, p. 276. 



511. HELMINTHOPHAGA Cabanis, instead of Helmintho- 

 phila, p. 298. 



512. PART7LA Bonaparte, instead of Compsothlypis, p. 299. 



