148 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
Eocene to Miocene rarely ; this is not very abundant. Amphistegina 
lessonii, d'Orb.; Tertiary and rare Recent. Synonymy, A. vulgaris, 
A. hauerii, d'Orb. ; Miocene. 
This bed at Bowden must be Miocene. The material from Bowden, 
Jamaica, is undoubtedly Miocene. 
Concerning these Foraminifera Bagg says: “The Foraminifera from 
Bowden, Jamaica, are essentially trópical species which existed in rather 
shallow waters of less than 300 fathoms, while many occurred 
depths of only a few fathoms and still exist. I have recognized 
the species Orbiculina adunca in the Pliocene deposits of the Caloosa- 
hatchie River, Florida, This species, though ranging throughout the 
Tertiary period, did not become plentiful until Miocene time. Cris" 
tellaria calcar, Linné, another shallow water form, is remarkable for i$ 
large size, reaching nearly 7 in. in diameter in the Bowden specimens. 
Gypsina globulus, Reuss. ‘This curious little fossil, round, as its name 
implies, and as large as double B. B. shot, is very abundant in the Bow- 
den material. This is the genus described as Tinoporus, Ceriopora, et 
Professor Brady in the Challenger Report says of this form, and its rel 
tive G. vesicularis, “Both have been obtained in the fossil condition 
from the Miocene formation of Austria and Hungary, Malta and 
Jamaica, and from the Pliocene of Costa Rica, and, according to Parkot 
and Jones, from the Tertiary beds of Palermo, Bordeaux, and Sal 
Domingo.” 
The species Textularia barretti is still living in shoal waters off the 
West Indies. It isa curious type of the genus, being compressed ab 
right angles to the usual plane of compression. 
Haplostiche soldani is the form described as Lituola soldani, but is 
now placed by Brady under the genus Haplostiche. It still lives 0 
the West Indies, but was most abundantly developed during the Mioceno 
period. 
There are numerous specimens from the Bowden gravel which hav? 
an aspect which might be, and probably have been, mistaken for orbi 
toides.* Jones has also reported Orbitolina from Vere,? where otho! 
Bowden fossils are found, and from the supposed Pliocene Pteropod mars 
of Jamaica. 
1 Jones has said that “ Orbitoides have long been, and still sometimes are, mis 
taken for Nummulina, Orbitolites, and Orbitolin®, — all very different one fro 
another; and even when they are recognized, it is often difficult to get at their 
specific characters.” — The Geologist, 1864, Vol. VII. p. 106. 
2 Ibid., p. 104. 
