or 4: THE VIVARIUM. 
description given by Mr. Boulenger in his catalogue of Batrachia 
gradientia: ‘‘ Brown, blackish, or olive above, with more or less 
distinct black spots; sides with white punctulation ; the breeding 
male’s head elegantly marbled with black and white; female 
sometimes with a yellow vertebral line; orange beneath, spotted 
or marbled with black; fingers and toes yellow, with black 
annuli; breeding male with a silvery-white band along the side 
of the tail; female with lower edge of the tail orange, immaculate.” 
The male is about six inches in length. These Batrachians 
may be bought for a few pence each during the spring and summer 
in any of our large towns. 
The Marbled Newt (Molyge marmorata, Fig. 93) is one of the 
handsomest members of its genus. It is a native of France, 
Spain, and Portugal. It is, however, rather rare in the first- 
mentioned country. 
This Newt has a rounded, broad, and depressed snout; well- 
developed labial lobes during the breeding season; a rounded 
body, which, in the case of the males, during the spring and 
summer, is ornamented by a large, straight-edged dorsal crest 
which sinks suddenly at the junction of the tail and bedy; the 
female, instead of a crest, possesses a longitudinal groove ; fingers 
and toes free, those of the males being longer and more slender 
than those of the female; the tail a little longer than the head and 
body, much compressed during the breeding season, and in the case 
of the males is provided above and below with a well-developed 
straight-edged crest; the skin tuberculated ; distinct pores on the 
head and parotoid regions ; and a fully developed fold on the throat. 
As this species varies greatly in colouring and marking, I ven- 
ture to quote the description given by Mr. Boulenger in his 
Catalogue of Batrachia gradientia: ‘*‘ Green above, marbled with 
black; dorsal and upper caudal crest with vertical, alternately 
black and white bars; female with an orange vertebral line; a 
silvery-white band along the side of the tail most distinct in the 
breeding male; fingers and toes green, with black annuli; lower 
surfaces brown or greyish, with more or less distinct darker 
spots, punctulated with white.” 
This Newt when fully grown is nearly as long as MW. cristata. 
It can be bought in England occasionally for a few shillings, and 
