MOLLUSCS, REPTILES AND AMPHIBIANS. 191 



52. Amnicola lustrica (Pils.). Carp lake. 



53. Anodonta granclis var. footiana (Lea). Lake Gogebic. 



54. Anodonta marginata (Say). Carp lake and Lake Gogebic. 



55. Sphaerium occidentale (Prime). Lake Gogebic and Little Iron river. 



56. Sphaerium rhomboideum (Say). Union river. 



57. Sphaerium simile (Say). Union river. 



58. Calyculina ryckhaltii (Norm.). Lake Gogebic. 



59. Calyculina securis var. crocea (Lewis). Lake Gogebic. 



60. Pisidium affine (Sterki). Union spring. 



61. Pisidium compressum (Prime). Union river and Lake Gogebic. 



62. Pisidium imbecili (Sterki). Union spring. 



63. Pisidium pauperculum (Sterki). Lake Gogebic. 



64. Pisidium punctatum (Sterki). Lake Gogebic. 



65. Pisidium roperi (Sterki). Lake Gogebic. 



66. Pisidium splendidulum (Sterki). Union river. 



67. Pisidium variahile (Prime). Carp lake, Carp river, Union river and Lake 

 Gogebic. 



68. Pisidium virgincum (Bgt.) Lake Gogebic. 



69. Pisidium species (?). Union spring. 



70. Pisidium species (?). First creek west of Little Iron river, Union river, 

 Caj'ahaga creek, Mud creek. Lake Gogebic, Little Iron river and several small 

 creeks. 



71. Pisidium species (?). Carp lake, Union river, Lake Gogebic and Little 

 Iron river. 



LIST OF AMPHIBIANS. 



1. Rana sylvatica (Leconte). Wood frog. Common in the woods about springs. 



2. Rana catesbiana (Shaw). Bull frog. Old and Young specimens taken in 

 Carp lake in numbers. 



3. Bufo lentiginosus americanus (Lee). Common toad. Often found in sunny 

 clearings. 



4. Rana pipiens (Gmel.). Leopard frog. A single specimen taken in Carp lake. 



5. Rana pahistris (Le Conte). Pickerel frog. Several specimens with the char- 

 acteristics of this frog were taken in Carp lake. 



6. Plethodon cinereus erythronotus (Green). Common in decayed logs. 



7. Ilyla pickeringii (Storer). Piping tree frog. A single specimen found in 

 dry woods. 



LIST OF REPTILES. 



1. Eutaenia sirtalis sirtalis (Linnaeus). Common garter snake. Two speci- 

 mens taken on the shore of Carp lake. Quite common in dry, sunny places in the 

 woods. 



2. Storeria occipitomaculata (Storer). Red bellied snake. A single specimen 

 found in a dry, sunny place in the woods a mile south of Union clearing. 



3. Chrysemys marginata (Agassiz). Painted tiortoise. A few specimens seen 

 and one taken on Carp river just as it enters the lake. 



Ontonagon county marks, in this part of Michigan, the northern 

 limit of (I'ope's Alleghenian district based on the distribution of Rep- 

 tiles and Batrachians. This district, according to Cope, is character- 

 ized by having no species peculiar to it. This conclusion is borne out 

 by the above list, because all the forms collected range both north into the 

 Canadian and south into the Carolinian districts, with the exception 

 of Eyla pickeringii and Chrysemys marginata, which do not extend 

 north of Lake Superior. They both, however, extend south into the 

 Carolinian. 



In all the rivers of this region, with the exception of the Union, the 



