L. G. ANDERSSON, NEW LIZARDS. 3 



in Stockholm. I have at other opportunities as well had 

 the pleasure of receiving new species of frogs from Dr. Du- 

 sen, and therefore I have named this new species after him. 

 Telmatohius duseni is nearly aUied to T. asper Blgr (Ann. 

 Mag. Nat. Hist. (7) 19 p. 394). With usual kindness Dr. G. 

 A. BouLENGER has compared it with the type of the latter 

 species. According to him »T. asper has the head longer in 

 proportion to its width, so the toes are much more exten- 

 sively webbed». Dr, Boulenger states also in the letter 

 which I have received from him that the males of his species 

 as well are provided with inguinal glands which is not men- 

 tioned in the description quoted, whereas there »is no trace 

 of it in females». 



Proctoporiis columbianus n. sp. 



Head and lirabs rather short, body moderate; frontonasal 

 quadrangular, distinctly longer than broad; frön tal nearly as 

 long as frontonasal, pentagonal, anteriorly nearly as broad 

 as frontonasal, narrowed posteriorly. Frontoparietals mode- 

 rate, forming a long suture, interparietal as large as parietals, 

 considerably broader behind, angular anteriorly, rounded 

 posteriorly; a pair of large occipitals, forming together a 

 semicircular anterior margin enclosing the hind part of inter- 

 parietal; a row of four large nuchals bordering the head- 

 shields behind. Four supraoculars ; a loreal; a row of large 

 infraorbitals; temple shielded, three large temporals in con- 

 tact with parietals and occipitals, Five or six upper labials, 

 third to fif th largest, four lower labials ; chin-shields, a single 

 anterior and three or four pairs, the two or three first pairs 

 forming a suture; the hindmost of the pairs which are in 

 contact form but a short suture. Between and behind the 

 chin-shields large gulars in two or three angular rows, and 

 behind them eight transverse rows of quadrangular gulars 

 including collar, regularly increasing in size towards the collar- 

 shields which are largest and ten or eleven in number. Dor- 

 sal scales quadrangular, smooth, about twice and a half as 

 long as broad, thirty-eight to forty-two scales from occiput 

 to base of tail; some of the transverse bands of scales un- 

 interrupted, some interrupted in the median dorsal line by 



