92 BARBOUR: ZOOGEOGRAPHY. 



Islands, — one of which he calls Scincus smaragdinus (PI. 3, fig. 1), and the other 

 S. viridipunctum (PI. 4, fig. 1), — represent what I assume to be surely a Papuan 

 example WTongly labelled as to locality; the second one is really from the Carohne 

 Islands. All the specimens fall into three groups, characteristic of their geo- 

 graphic ranges. Thus all the specimens without a single exception from Waigiu, 

 Papua, and New Britain have the body grass-green in life, blue in spirits, some- 

 times fading posteriorly to a reddish buff, which color continues along the whole 

 tail. This race may be known as Dasia smaragdinum smaragdinum (PI. 1, fig. 1) . 



Ten examples from Ebon, Marshall Islands; two from the Pelew Islands; 

 and two from Ruk, Caroline Islands, are all alike, and unvarying in color. They 

 are dark iron-gray, each scale with a dark centre or edge. This is the form not 

 very accurately represented by Lesson, PI. 4, fig. 1. It may be known as Dasia 

 smaragdinum viridipunctum (PI. 2, fig. 4). 



The specimens from the Moluccas are as uniform, and are characterized by 

 a light gray ground color, more or less irregularly spotted or blotched with dark 

 brown or black. This gives a sort of pepper-and-salt appearance. The type 

 has been designated as No. 7,481, M. C. Z., an adult from Wahaai, Ceram. The 

 race (PI. 1, fig. 2.) may be called Dasia smaragdinum moluccarum Barbour (Proc. 

 Biol. soc. Wash., 1911, 24, p. 17). Curiously enough no structural characters 

 have been found which hold for this large series which are constantly present 

 jointly with these most striking and unexpectedly fixed color-patterns. 



The young of all seem to be alike, — brownish, green spotted, and mottled 

 with darker green; so that the single small example which I recorded from 

 Formosa, the first known, can not be definitely placed as to its subspecies 

 (Barbour, Proc. N. E. zool. club, 1909, 4, p. 65). 



It may be urged that, on the evidence of Lesson's two figures, the green 

 form as well as the other occurs in the Carolines. We must recall, however, 

 that in the early part of the last century on long voyages specimens were not as 

 carefully separated from each other according to locality as they are now. We 

 know that Lesson visited Papua; and the examples of D. smaragdinum smarag- 

 dinum figured, and the types of other of his species indeed, doubtless are of 

 Papuan origin. Many of the Oualan records need verification. 



Leiolepisma fuscum (Dumeril et Bibbon). 

 DuMERiL ET BiBHON, Erpet. gen., 1839, 6, p. 7.59. Boulengek, Cat. lizards Brit, mus., 1887, 3, p. 283. 



Type locality: — Waigiu and Rawac Islands. 



Of this common skink, which is abundant almost everywhere, both in open 

 and in forested regions, the following material was preserved: — seven from 



