92 REPTILES AND BATRACHIANS 



and the left one not touching one another. Limbs with 

 large shields, lower surface of arms, and hinder side of 

 thighs granulate; femoral pores indistinct. Scales on the 

 upper part of the tail hexagonal, keeled, those of the lower 

 part smooth, larger. Brown above with a whitish vertebral 

 band, from the occiput down to the beginning of the tail, 

 lower parts cream-coloured, tail reddish. 



One small specimen collected by theCoppename-expedition. 



43. Mabuia aurata Schneid. 



One specimen collected by the Saramacca-expedition. 



B atrachia. 



44. Dendrobates tinctorius Schneid. 



Three adult specimens and one semi-adult, collected by 

 the Coppename-expedition. 



45. Dendrobates trivittatus Spix. 



One specimen collected by Dr. van Cappelle near the 

 Fallawatra. 



*46. Phryniscus fiavescens D. & B. 



Five specimens, two semi-adult ones collected by the 

 Saramacca-expedition at Toekoemoetoe on Febr. 3 rd '02, 

 and three adult ones from Lawa, collected Dec. 2 nd '03 by 

 the Gonini-expedition. They all agree in having short toes, 

 the first of which is quite indistinct, and moderate fingers, 

 the first very short and rudimentary, and in the absence 

 of metatarsal, metacarpal and subarticular tubercles. They 

 have the loreal region vertical with distinct canthus rostralis, 

 the snout projecting, the nostril lateral, just above the 

 symphisis of the mandible when the mouth is closed. 

 The semi-adult specimens agree in coloration with Cope's 

 Atelopus spumarius : the upper parts being of a dark brown 

 colour with numerous narrow annuli of greenish-yellow, in 

 one specimen these annuli meeting form a band from orbit 

 to groin, lower parts yellow sparingly spotted with brown. 

 In the three full-grown specimens the principal colour is 

 yellow, with large black spots on the back, the flanks and 

 the limbs, these spots flowing together in several places. 



Notes from the Leyden Museum, Vol. XXV. 



