IIHMAIXS IN TJIH CO AL-FO 11:^1. VTIOX OF XOVA SCOTIA. 



G43 



A spocimcn of tlic skull was also obtained sliowin^r its internal surface, and exhibit- 

 ing clearly the sutures of the several bones. Tiiis I have submitted to Professor 

 (Vtl'K, and give a diagrannnatic representation of it (Plate 44, iig. 1:32), showing 

 his interpretation of the several bones, which apparently accord in number and 

 arrangement Avith those (A' Lilii/riiillii)i/iiiitl<(, but differ from those of the Micvomuria, 

 in so far as (he crushed condition of tliese latter enable an oiiinion to be formed. 



Under the microscope, the bone of Di-iKlrcrp.ton j)resents large and somewhat 

 rounded or oval cells with numerous eanaliculi tilling the intermediate spaces. The 

 teeth have the dentine folded at the base, but sometimes only on the inner side. The 

 tubes of the dentine are simple and fine, in this resembling those of Baplidas and 

 other Labvrintiiodonts. 



The abdomen of iJciKlrcrjwtoii was ])roteeted by numerous broadly sub-oval scales, 

 arranged en clwrroii, but I have not been alile to detect with certainty any thoracic 

 jilate, though I have one specimen which I think may be a part of such a plate. 



Other characters of this species will be founil in the memoir and works above 

 cited. 



10. Dcndrcrpdoit Oircni, Dawsu.n (I'late 44, figs. 131, 138, 139). 



[Journal of Geological Society, vol. xviii., p. 4()9. 'Air-lireathers of Coal Period,' p. 32. 



'Acadian Geuldgy,' p. oGS.] 



This s[)ecies is represented by four specimens in the new material, and these serve 

 to establish its distinctness from the last mentioned, in its smaller size, its more 

 delicate cranial sculpture, and its longer and nmre curved teeth. Its abdominal scales 

 are also nari-ower and more ])ointed, aj)pr(iaching in this to the oat-like form of those 

 of lliih'i'pcton. So far as knowi:, the scaly covering of the back of this species was 

 similar to that of D. Actidiiiuitm. 



Other characters t'f the species will Ijc loiuid in the memoir and works above 

 cited. 



11. Spannhis, sp. (?) (I'late 40, figs. 52 to SC). 



Ill the coaly matter or minei'al chari'oal at the base of tiee No. 10, appeared a few 

 fragments of an animal which may possibly b,'l(ing to the above-named genus of 

 FlUTScii, tliouirh I am by no means certain of this identilication or of the real nature 

 ot the animal. 



The skull is represented by a fragment of a maxillary or intermaxillary bone, with 

 blunt conical teetli. It is siuodtli or marked merely with microscopic dots. There is 

 also a IVagmetit which may be a palatal linm- stmlded with minute teeth. 



A few vertebiic associated with the alioxc bones are long and narrow, with large 

 zygaj)o])hyses and long neural sj)ines. Length oi' bmly about 3 millimetres. 



I 



