File:Guide leaflet (1901) (14742909046).jpg

Identifier: scienceguide1630amer (find matches)
Title: Guide leaflet
Year: 1901 (1900s)
Authors: American Museum of Natural History
Subjects: American Museum of Natural History Natural history
Publisher: New York : The Museum
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ature. A common phase displays much vivid greenabout the head and anterior portion of the body, while the poster-ior portion is brown or olive. Sometimes the entire body is green,in other instances dull brown. The male may be distinguishedfrom the female by his much larger earplate (tympanum). This species resembles the Bull Frog, but may be readily distinguished therefrom by a marked anatomical character: on each side, beginning behind the eye and extending nearly the (47) 202 THE AMERICAN MUSEUM JOURNAL entire length of the body, there is a vein-like ridge or fold ofskin. The Pond Frog is, moreover, considerably smaller-Average length of body, 3\ inches; total length, with limbs out-stretched, 7! inches. Range: Eastern and central United States and southernCanada. Local Distribution: General and abundant. With the possible exception of the Toad, the Pond Frog isthe most familiar of our local batrachians. It is found every-where and abundantly in ponds and streams, where its familiar
Text Appearing After Image:
FIQ. 25- THE POND FROG, OR GREEN FROG From specimen in Am. Mus. Nat. Hist. croaking may be heard during the summer months. The eggsare deposited in masses early in the spring. The jelly-likeclusters containing the numerous black dots representing thedeveloping embryos are familiar objects. The tadpoles arerather slow in growth, generally consuming two seasons beforethey complete their metamorphosis, according to the tempera-ture of the water and its exposure to sunlight. In the fall thetadpoles burrow into the mud and hibernate. The average tad-pole is three inches in length when the limbs are well advancedin growth, and the young frog, immediately after absorptionof the tail, measures slightly more than an inch. Tadpoles US) BATRACHIANS OF THE VJCINITY OF NEW YORK 203 confined in indoor aquaria are much retarded in their growth,and many remain as such for a period of three years or more. The Bull Frog, Rana catesbiana Shaw (Fig. 26), is very largeand stout. Limbs short but powerful.

Note About Images