1888.] ON THE GULAR POUCH OF RHINODEKMA DARWINI. 231 



Fam. GalleridjE. 



93. Nephopteryx, sp. ? 



94. Aurana, sp. 



Very close to A. actiosella, Walker, from Ceylon. 



EXPLANATION OF PLATE XIII. 



Fig. I. Beferopan dolens, n. sp., p. 220. 



2. Hypsa woodfordi, u. sp., p. 22L 



3, 4. Steiria variabilis, Moore, vars., p. 223. 

 5. Grammodcs alcyvna, n. sp., p. 225. 



fi, (5iTt 2- Thalassodes timodea, ii. sp., p. 227. 



8, (^ . Acidalia ccrnea, n. sp., p. 227. 



9. Micronia hermcsa, ii. sp., p. 227. 

 10. Lar&ntia bosora, n. sp., p. 228. 



2. Notes on the Gular Brood-pouch of Rhinoderma darivini. 

 By G. B. Howes, F.Z.S., F.L.S., Assist. Prof, of 

 Zoology, Normal Sch. of Science and R. Sch. of Mines, 

 S. Kensington. 



[Eeceived April 17, 1883.] 



The Chilian Batrachian Rhinoderma dnrwini was amons: the 

 most interesting finds of the voyage of the 'Beagle/ and its special 

 interest lay in the fact that it was originally thought hy Gay ^ to 

 have been viviparous. Jimitiez de la Espada disproved this in 

 1872, and brought to light ^ the remarkable fact that the gular sac 

 of the male becomes greatly enlarged and modified, to form a brood- 

 pouch, within which the larval metamorphoses of the young are 

 undergone. 



The specimen which furnished the subject-matter for these notes 

 came into my hands quite recently ^, in the course of an inquiry 

 into the skeleton of the Anura '. Finding that I was able to 

 supplement the descriptions of Espada, and seeing that his paper 

 was published without illustration, I thought it desirable to seize the 

 opportunity of putting on record drawings of so rare an object. The 

 specimen itself differs in no important external character from 

 those hitherto described. It measures from snout to vent 30 mm., 

 that being the length given by Espada ; the length of the outstretched 

 hind limb is 62 mm., and the greatest transverse diameter of the 

 trunk 18 mm.^ The cutaneous lobes of the fore limb (' epaulettes ') 



> Compt. Eeud. vol. ii. p. 322 (1835). 



••' Anales d. 1. Soc. Esp. d. hist. nat. Madrid, vol. i. pp. 139-151 (1872). 

 German abstract by Speugel, Zeitscb. wiss. Zool. vol. xxix. pp. 49,5-501 (1877). 



^ Among some material generously placed at my disposal by my master. 

 Prof. Huxley. 



* SeeP. Z.S. 1888, p. 141. 



^ For good fig. see Gay, Hist, de Chile, Atlas, pi. 7, Ei'petologia. 



