GAKMAN : REPTILES AND BATKACHIANS FROM AUSTRALASIA. 13 



Denisonia vagrans, var. nov. 



Body cylindrical ; belly rounded ; tail nearly one-fifth of the total, slender, 

 tapering. Head scarcely distinct from the neck, angular, flattened on the 

 crown. Scales smooth, dorsals in 17 rows; 161 ventrals; a divided anal ; 

 49 subcaudals, entire. Eye longer than its distance from the end of the snout. 

 Eostral broader than deep, visible from above, in contact with six scales. In- 

 ternasals broadly in contact with the rostral, little shorter than the prefrontals. 

 Frontal twice as long as broad, one and one-half times as wide as the supra- 

 ocular, one and one-third times as long as its distance from the end of the 

 snout, shorter than the parietals. Nasal entire, elongate, iu contact with the 

 single preocular. Prefrontals bent downward on the side of the face. Preocu- 

 lar in contact with the second and the third labials, the nasal, the prefrontal, 

 and the supraocular. Third and fourth labials below the orbit; fifth labial 

 largest, longer than the sixth. Lower of the two postoculars resting in a 

 notch between the fourth and the fifth labials. Temporals, two plus two, 

 upper anterior largest, lower wedged between the fifth and the sixth labials. 

 Lower labials seven, second smallest, fourth largest, anterior three in contact 

 with the first chin shields, first separating the anterior submental from the 

 mental. Posterior submentals longest, separated from the anterior ventral 

 plates by three longitudinal series of three small scales each. 



Uniform brownish olive on the back; belly olivaceous, slightly darkened 

 under chin and throat, whiter under the tail. A narrow band of white behind 

 the eye, shorter than the head. A narrow obsolescent streak below the nostril 

 to the angle of the mouth. 



Total length, 0.389 m.; tail, 0.071 m. 



Dunk Island, off N. E. coast of Queensland ; Dr. W. McM. Woodworth. 



The Dunk Island snake is so closely allied to D. signata Jan. that it may be 

 placed as a variety. The most prominent differences appear in the frontal 

 shields, the sixth labial, and the coloration. D. signata has a darker color in 

 the middle of the ventral surface which is not seen in the present type. The 

 absence of this dark color beneath is what might be expected in a locality with 

 more of vegetation as compared with an arid or desert region. 



Crocodilus Johnsoni Krefft. 

 Cooktown ; Mr. Olive. 



