202 W. BALDWIN SPENCER. 



some of the cells of the lens pigment is deposited. It is 

 difficult to determine whether the organ is or is not yet con- 

 nected with the proximal part of the epiphysis, owing to the 

 great development of pigment in the dura mater surrounding 

 the upper part of the epiphysis^ and leading from this to the 

 eye ; it was not possible to say definitely whether in the 

 specimen examined this did or did not contain a process from 

 the proximal part of the epiphysis. 



Grammatophora barbata. 



The scale modified to act as a cornea is present and promi- 

 nent on the surface of the head. 



The eye is present beneath and has apparently (having been 

 only examined as a solid object) the form of a bulb, very 

 similar indeed to that already described in Calotes ; in fact, the 

 figures of this as a solid object (fig. 14) would serve also for 

 that of Grammatophora. Externally the bulb is covered 

 with a glistening white substance, whilst internally it is lined 

 by deep pigment in which the rods are embedded. Above the 

 eye, which does not appear to be connected with the epiphysial 

 stalk, pigment is, as usual, entirely wanting in the skin. 



Moloch horridus, PI. XIX, fig. 36. 



External Appearance. — In the specimen examined the 

 external indication was very well marked, consisting of a cir- 

 cular dark space, surrounded again at a short distance by a 

 dark circular line, and lying upon a small smooth space in the 

 median line dorsally amongst the stifi" horn-like processes 

 covering the head. 



Position of Eye. — Longitudinal sections at once showed 

 (PI. XIX, fig. 36) that this space corresponded roughly in 

 extent to that of the parietal foramen, and that within this and 

 close beneath the surface lay the eye. Unfortunately like 

 many others this specimen was in too bad a state of pre- 

 servation to do more than enable me to ascertain with 

 certainty the presence and general outline of the organ. It is 

 remarkable for its spherical shape, deep pigment, and com- 



