946 The Mink or Hoosier Frog. [September, 
fected larva. They are very active and vigilant. I can aver that 
I have seen the larva dart into the river from the edge, at the dis- 
tance of a rod or more from where I was standing, and have had 
no small trouble to secure even a few subjects. 
The following measurements are the mean of twelve adults, im 
inches, and carefully correlated : j 
From end of snout to end of great toe....... .634 inches. 
RIOR NORE TO VODE ied ss eano wee ceases ove tees sees te oe 
Breadth of kedd a fwlb.: onna View bwe lees cutee AS Roe 
Thigh in-lespths $16). 2 PRO is es 
Peg i th eine pete eerete een Ge dias EOE 4, oe ae eek oe 1} ff 
Taras dos. ee e TTN Re e 
Extemaltoe doe L Pro oe eos erie -I is 
Second, or longest’ in all’ frogs, doii irao ded. sae wues Eyes 
r EEA E T es We 
EI fea EN PED E AE O E male dak E T AEA 
2 es api ba ee 
PM OR ME Pe ves e E E ea vanes cv ews A A X 
Forearm do : E A 
External finger do.. kto tea i eA fee 
Longest finger, or second, do. . “sek VE 
Tardo OF DONAS COL) eoeueoo bce iin duces cart hers Gear. ae Gia 
MUO GRO pad CO) isil. oro iko arkar o rania REA a AE se 
From internal canthus to end of nose oo 
From angle of mouth to symphisis of jawS .ssesssse.reneest pAg 2 
This frog is easily distinguished from all others 
America by the peculiar minky odor and by. the beautiful hazel- = 
brown of the iris, features persistent in all specimens and in bw 
stages when in life. These disappear, of course, in alcohol. The n 
upper and lower lids are edged with a semi-transparent ae 
border. The nostrils are small, black, and with a raised margit. 
The ears are dark brown, marbled with sooty black. Above eacheye : 
may generally be found a black blotch or spot, and a rece - 
parallelogram of black on each shoulder. There is a sli sht pe 
of raised skin from the angle of the mouth disappearing a : a : 
shoulder, but the lateral fold is absent in all stages. oe 
The coloration of this species is peculiar, and is so peri a 
minedas 
k 4S 4 
and so little varied in the many specimens I have xa 
not to permit it to be confounded with any other. The wal 
dark olive-green, mixed with sooty brown. There «F 
its outside 
1 ring to 
The foot when spread forms nearly a parallelogram, measu he 
to 
edge 114 inches long and 5 broad, which is large in proportion 
species. 
