Fig. 5. 



— 152 — 



the name of Fetrophrynt granulata. The specific name 

 refers to the ornamentation of the ganoine layer; and I 

 add a carefully drawn magnified figure of the disposition 



of the pearl-like 

 granules upon the 

 part of the cra- 

 nium which seems 

 to define the os- 

 sa parietalia.'(fig. 

 1, 7, 7 and fig. 

 o/ . In Rhinosau- 

 ~~ rus the granules, 

 which are disper- 

 sed over the fron- 

 tals and nasals, as 

 in Petrophryne 



Petrophryne granulata. (fig. 1, 11, 15), 



run together in almost radiating lines upon the parie- 

 tals and temporals. *) This confluent and subradiate 

 disposition is extremely limited, as in parts of the 

 squamosals and mastoids, in Petrophryne; but it is 

 carried out to a greater degree than in Rhinosaurus in 

 the East Indian fossil genus Brachyops. Loc. cit. plate IL 

 If- the original of Fischer de Waldheim's description 

 and figures, above cited, should be accessible, 1 would 

 respectfully urge the desirability of a determination of 

 the mode of articulation of the occiput with the spinal 

 column, — whether by a single or a double condyle — 

 in Bhynosaurus? If that latter structure should be found. 



*) —J, Les grains, presque réguliers sur les frontaux et les nasaux, 

 prennent une forme allongée et presque rayonnante sur les pariétaux 

 et les temporaux" (loc. cit. p. 5) . 



