32 MR. G. \. BOULENGER ON REPTILES, [Jan. 14, 



12 species obtained by Prof. Moesch, carmine spots or markings are 

 present in the foUowina: : — Bana limnocharis, Microhyla achatina, 

 Phrifnella pulchra, J^ufo melanostictus, B, parvus, B. asper. A 

 somewhat similar proportion of carmine-spotted forms was observable 

 in the collection from Malacca presented by Mr. Hervey. Such 

 ornamental markings cannot be regarded as adaptations to the 

 surroundings, and doubtless fall under the head of geographical 

 isomorphism or mimetic analogy. 



As noticed by Wallace, the fauna of Sumatra is much more nearly 

 allied to that of the forests of the Malay Peninsula and Borneo, 

 than is that of Java to either Sumatra or Borneo. Dr. Jentink ' finds 

 " that the Mammalian fauna of East Sumatra agrees much more with 

 the Borneo than with the West Sumatra fauna." I am not struck 

 by any such relation in the herpetological fauna. 



[P.S. (Feb. 7, 1890). — This list was in type when I received from 

 my colleague, Dr. van Lidth de Jeude, an advanced copy of a 

 paper " On a collection of Snakes from Deli," to be published by 

 him in the ' Notes from the Leyden Museum,' xii. 1890, pp. 17-27, 

 and which, very curiously, was completed on the very same day as 

 my own (Leyden Museum, 30 Dec. 1889). There is, however, no 

 duplication of names, from the fact that both the new forms described 

 by Dr. de Jeude were not represented in the collection worked out 

 by me ; and I have no alteration to make to my list. Of the two 

 novelties in Dr. de Jeude's paper, one, Calamaria vermiformis, var. 

 sumatrana, is, however, not unknown to me, as I had found a 

 specimen (also from Deli) in the Fischer Collection, and this I had 

 likewise referred, as a colour- variety, to C. vermiformis. Should 

 such a form warrant a name, that of sumatrana (Jeude) will have to 

 be changed, being preoccupied by Edeling. 



Hypsirhina hageni, Jeude, is unknown to me ; but, judging from 

 the careful description, appears to be a very interesting new form, 

 intermediate between Hypsirhina bocourti, Jan (Siam), H. sieboldii, 

 Schleg. (India, Burma, IMalay Peninsula), and Homalophis dorice, 

 Peters (Borneo). The snake described by Steindachner in 1887 ', as 

 a variety of the latter, is probably, again a distinct species, which 

 agrees with H. liageni in the single loreal and 27 rows of scales. 



Other species mentioned by Dr. de Jeude and not represented in 

 the Moesch and Iversen collections are Ti/phlops lineatus, Reinw., 

 Lycodon aulieus, L., Odontomus subannulatus, Schleg., Coluber 

 (Gonyosoma) oxycephalus, Reinw,, Dryophis fasciolatus, Fischer, 



1 Notes Leyden Mus. xi. 1889, p. 19. 



^ MoJge siraiwhii, Steind., described and figured in the same paper, =3c«- 

 rergus crocatus. Cope (1862). It appears to me probable that the affinities of 

 Molgc crocata are with M. moiihina, Savi, not with M. crisiata and marmorata, 

 as suggested by Steindachner. I cannot see how the presence of a ligamentous 

 arcusfronto-tcmporalis can justify the inference that a dorsal crest is probably 

 present in the breeding male. There are Newts with a ligamentous fronto- 

 temporal arch, both with {JSIolge marmorata) and without {M. montana) a dorsal 

 crest ; the same is the case witli those in which the arch is ossified {Molge vittata, 

 M. boscce) and with those in which it is absent {Molgc cristata, Chioglossa 

 ludtanica). 



