LONSDALE ON EOCENE CORALS FROM N. AMERICA. 517 



bedded, no opinion could be formed, except that it was probably 

 very solid or similar to that of Oculinae, there being no vestiges of 

 casts of capillary tubes or of a reticulated structure, though 

 abundant proofs of the matter having been penetrated by burrow- 

 ing animals. The signs of lamellae in transverse sections of the 

 central part were very faint, but sufficient to show that the broad- 

 est were twelve in number, and that the intermediate ones varied 

 from one to four. The surface of this inner cast was slightly 

 traversed by lines indicating the vertical range of the broadest 

 lamellae, and by traces of irregularly disposed striae. Between the 

 cast and the base of the side-shoots was an extremely narrow space, 

 proving that there was originally no structural interblending of 

 lamellae in the offset and main stem. The shoots at the inferior 

 termination were obliquely conical, but they soon attained their 

 full dimensions, so far as could be inferred from the specimens, the 

 greatest diameter being about -^ of an inch, or f that of the 

 central cast — a disproportion observable in recent Dendrophylliae. 

 Their range was limited also to less than a line. The general 

 outer surface was apparently smooth, but uneven as in some Ocu- 

 linae ; and the cast of it bore traces of parasitic Bryozoa, an addi- 

 tional indication to that of the numerous burrowing animals that 

 the polypes had perished some time previously to the specimen 

 being enclosed in its matrix. 



Localities. — Wilmington ; Shell Bluff. 



5. Dendrophtllia ? 



Several worn casts, possibly fragments of a Dendropkyllia, 

 claimed a notice, though their generic determination could not be 

 ascertained. They were slightly conical or cylindrical, the lower 

 termination not unfrequently preserved, presenting the same cha- 

 racter as that of the lateral shoots of Dendropliyllia Icevis. The 

 specimens had a nearly uniform diameter of half an inch at the 

 upper extremity ; and the greatest length was about an inch. 

 The characters of the lamellae, so far as they could be ascertained, 

 agreed with those of Dendropliyllia, and in the reticulated structure 

 of the very partially preserved exterior, as well as in the mode 

 of union with the lamellae, there were still further agreements. In 

 these particulars, a resemblance also with the Alabama coral 

 Endopachys alatum existed, but in no instance was a trace of a 

 pedicle detected, nor any indication of a surface which had once 

 been attached. 



Localities. — Mulberry, Cooper River ; Eutaw. 



6. CLADOCORA ? RECRESCENS. (sp. n.) 



Branched ; branches variously disposed, nearly cylindrical ; outer wall thin, 

 not thickened externally when old, porous, strongly but irregularly ribhed, and 

 marked by lines indicative of renewals of growth ; lamellae numerous, unequal, 

 sides foraminated and hispid ; interstitial laminae or diaphragms distant ; centre 

 a complicated reticulation ; branches produced from germs developed without 

 the area, or on the side of pre-existing stems. 



