30 



This fossil evidently belongs to a genus quite distinct irom He ceptaeuUtes, 

 but of the same family. It appears to be congeneric with Tetragonis 

 sulcata. Eichwald, Lethaea Rossica,p. 432, pi. XXVII, fig. 5. 



I would refer it to Tetragonis provided T. sulcata were accepted as the 

 type of that genus, an arrangement hardly to be expected while the laws 

 of scientific nomenclature continue to be construed as they are at present. 

 Should T. Murchisoni turn out to be a true HeceptacuUtes, then, accord- 

 ing to the most widely approved mode of disposing of such questions, 

 Tetragonis must be suppressed, and remain forever afterwards a natural 

 history incumbrance in the shape of a synonym. It would be the better 

 course to retain the name with T. sulcata as the type, In the meantime I 

 shall place this species in Receptaculites provisionally. The specimen 

 was found at Gamache Bay ; Div. 1, A. G. T. C. Weston. 



ZOOPHYTA.* 



Genus Heliolites, Dana. 



Fig. 12. 



Fig. 12. — Heliolites affinis. 

 " 13. — " speciosus. 



Fig. 13. 



Fig. 14. 



14.— 



exiguus. 



H. AFFINIS, B.,(ante, p. 5.) — White Cliff, Junction Chff, Wall's Cove, 

 South Point, and other localities; Divs. 1, 2 and 3, A. G. Also H. R. 



H. SPECIOSUS, B., Can. Nat. Geol. [2] vol. ii, p. 426. — Corallum 

 clavato-turbinate or sub-pyriform ; cells a little more than one line in 

 diameter, on an average, usually about half their width distant from each 

 other, but occasionally in contact and sometimes more widely separated ; 

 their margins thin, elevated above the general surface, crenulated or orna- 



