18 
specimen. Presented by Mr. HerVjert Brown, whose inde- 
fatigable energy has enriched the collection by many rare 
species from the Arizonan district. 
5S. Osceola's snake ( (Iscf ola eJ^ipsoldea), southeastern 
United States. 
o^J. AVorm snake (CfirphojtJiiops omrenus), eastern I'nited 
States. 
60. Helen's snake (('. Jteleruf), cenivd] and -ourliL-rn Tnited 
States. 
Virginias snake (Virginia rahriie), eastern I'nited 
States. 
62. Irwin's snake (Hypsiglenu ocJirorhipicha cldorophaea), 
Arizona. One specimen. Presented by Mr. Herbert Brown. 
63. Angulated snake i J)romiciis nnr/uJifer), West Indies. 
Several snakes belonging to the genus Droinicus, received 
July 4th. from the Isle of Pines, have been referred with 
some hesitation to th*- above variable species, with which 
they agree closely in form and .scutellation. All of the 
.specimens received, however, present color-markings of so 
decided a character that I aui disposed to belii-ve that they 
may prove to be a distinct species. 
64. Four-rayed snake (Elaplds fpiaterrndiatas), Europe. 
65. ^Esculapian snake {Coluber sescidapii), Europe. 
66. Four-lined snake (Colid)er quadrilineatus), Europe. 
The one specimen of this species received was of the 
spotted variety ikopordl/ins). 
67. Common snake [Tropidonotvs natrix), Europe. 
68. Marcy's garter snake {Eutxnin niarciana), Texas to 
California. One specimen of this beautiful snake — one of 
the largest of the genu^? — presented by Mr. II. Brown. 
69. Black-sided garter snake (Eutaenia nigrolateris), Ari- 
zona, A Eiifxnin received from Tucson, Ariz., on the 
23d of September, through the kindness of Mr. Herbert 
Brown, on examination proved to belong to a well-marked 
and previously unknown species. It was described by me, 
under the above name, in the Proceedings of the Academy 
of Natural Sciences of Philadelphia. 1889. page 421. 
7". l)la<k liog-nosed snake {Heterodox plat if rhinos niger)^ 
United States. Several specimens received from Florida 
