ON A NEW HOPLOCEPHALUS FROM THE GULF OF 



CARPENTARIA. 



By William Macleay, F.L.S., &c. 



HOPLOCEPHALUS CARPENTARIiE. 



Scales in 15 rows. 

 Abdominal Plates 183, 

 One Anal Plate. 

 Sub-caudals 31. 

 Length, 20 inches. 

 Tail, li2 inches. 



Of slightly depressed form. Head a little broader than the 

 neck, body not much enlarged towards the middle, tail short, 

 tapering to a fine point. Anterior frontal shields less than half 

 the size of the posterior, a little emarginate in front to receive 

 the rostral shield, and in contact with two-thirds of the nasal 

 shield. The posterior frontals 5-sided, the anterior side in contact 

 with the anterior frontals, the lateral with the hinder third of the 

 nasal shield, the external posterior side with the preocular and 

 superciliary shields, the internal with the vertical shield, and the 

 inner side in contact with each other. The vertical shield is 

 6-sided and triangular in front and behind. The snperciliaries 

 are considerably shorter than the vertical and about half the 

 width. There are two postocular and one preocular shields. The 

 nasal shield is elongate and pointed behind. There are six upper 

 and lower labial shields. The eye is of moderate size, the pupil 

 almost round, and is in contact with six shields — the parietal, the 

 two posterior oculars, the anterior ocular, and the third and 

 fourth upper labials. The place of the loreal shield is occupied by 



