Fossil Jieptiles. 271 



The palatal portion is so crushed that it is difficult to be 

 certain of its structure. There is a well developed l)on}' ridge 

 covei-ed with 4 or o rows of denticles like those of the dentary, 

 but whether this tooth-bearing ridge is maxillary or palatine, or 

 both, it is impossible at present to decide with certainty. What 

 evidence there is, however, seems to point to the ridge being 

 palatine, as the denticles are mostly on its outer and under surface. 



If my interpretation of the displaced and imperfect post- 

 cranial bones be correct, we have a well developed scapula, coracoid, 

 clavicle and interclavicle. The pelvis which I believe to belong 

 to the same form bears some little resemblance to that of Belodon. 

 The ilium however is relatively longer, and the ischium is plate- 

 like. The pul)is is twisted, but forms part of the acetabulum. 



HoiL'Csia seems to be a near ally of Hyperodapedoii but less 

 specialised. The Kota-Maleri beds of India in which Hyperoda- 

 pedon occurs are apparently of the same age as the Stormberg beds 

 of South Africa, and are thus pi'ol)al)ly Lower lurassic. The Aliwal 

 beds are most probably Upper Triassic. 



I have named this genus in honour of the late Prof. G. B. Howes, 

 whose work on the allied S phenodoH will probably ever remain 

 the standard work on the development of the reptilian skeleton. 

 His early death is a severe loss to the zoological world, and it will 

 be especially keenly felt by the younger generation of zoologists, 

 to whom he was always so willing to give assistance and advice. 



Triracliodon mi nor ^ n. sp. 



The ty|)e of this new species is the crushed and rather liadly 

 wethered fi-ont portion of a skull. In general it agrees fairl_y 

 closel.y with Trir((c]iod(i)i K((nne)neyfri, so far as preserved. 

 There has been a hard palate passing back as far as the plane of 

 the 6th molar. On the right side portions of one incisor, the 

 canine, and four molars are preserved. The canine measures 5.6 

 nnn. l)y alxmt .■).(S mm., and is followed after a diastema of 1.') mm. 

 by a small molar or premolar 1.<S min. in length. The second 

 molar is 2.2 mm. long and 3 mm. lu-oad. The third molar is 2.;") 

 mm. b}' 3.5 mm., and the fourth about 3 mm. by 5 mm. The 



