HILL: GEOLOGY OF JAMAICA. 155 



of which, as determined by T. Kupert Jones and W. K. Parker, are 

 nearly all identical with those dredged by Barrett in the adjacent sea 

 at depths which indicated at least 100 fathoms. 



The species determined by Jones and Parker ^ are as follows : Nodo- 

 saria raphanus ; Nodosaria raphanistrum ; Dentalina acicula ; Frondicu- 

 laria complanata ; *Cristellaria calcar ; "^Cristellaria cultrata ; Cristellaria 

 rotulata ; Cristellaria italica ; *Orbitolina (Gypsina) vesicularis ; Buli- 

 mina ovata ; *Lituola (Haplostiche) soldanii ; Vertabralina striata; 

 *Cuneolina pavonia ; Vagulina acumen ; Vagulina striata. 



Eight of these species have been found living in the adjacent waters 

 by Barrett. Five of the species (marked *) are the same as those 

 identified by Bagg in the Bowden beds. Those genera which are 

 specially characteristic of the Oceanic White Limestone and Cambridge 

 beds, such as Orbitoides, Nummulina3, Operculina, Heterostegina, and 

 Amphistegina are absent here,^ as well as from the Bowden beds. 



In the Falmouth beds of the north and south coast of the west end 

 of the island, the third, last, and most recent horizon of abundant well 

 preserved fossil remains of Post-Pliocene MoUusca are met. They in- 

 clude [jucina, Cardium, Area, Solen, and many other genera of bivalves, 

 and among the Gasteropoda forms of Turbo and Strombus, such as 

 abound off the present coast, and great numbers of a small Bulla, 

 which is especially abundant in similar deposits of Yucatan, Barbuda, 

 and other West Indian localities. This sub-recent or Pleistocene fauna 

 is well worthy of careful study and analysis by those interested in the 

 study of the paleontology of the Mollusca. 



Fauna of the Elevated Coral Reefs. — In the elevated reef of the 

 Coastal Series, corals are everywhere found, either as the chief material 

 of the elevated reefs, as previously described, or as single specimens or 

 fragments in the contemporaneous marls. 



Vaughan has identified the following species of coral in the various 

 Soboruco collected by us. 



" 7. Barbican Bay, Jamaica, twenty-five foot reef ; Siderastrsea ra- 

 dians, (Pallas) ; Siderastroea siderea, (Ell. and Sol.) ; Porites porites 

 (Linn.) ; Orbicella acropora, (Linn.). 



" 1 3. Bluff east of Port Antonio, Jamaica ; Orbicella acropora (Linn.) . 



"16. Soboruco, Port Maria, Jamaica : Low^er Soboruco; Orbicella 

 acropora, (Linn.) ; Siderastr£ea siderea, (Ell. and Sol.). 



" 38. Try hall, Jamaica ; Lower Soboruco : Orbicella acropora (Linn.). 



1 British Association Reports, 1863, p. 80, 



2 Noted by Etheridge, Jamaican Reports, p. 313. 



