128 BULLETIN; MUSEUM OF COMPARATIVE ZOÖLOGY. 
inasmuch as it contains a distinctive fauna abundant in specimens if not 
in species, including several species of Cretaceous fossils which have trang 
gressed into the Eocene. The three members of the formation, the Cata- 
dupa, Chapelton, and Port Antonio respectively, are paleontologically 
allied, the only difference being that some of the characteristic corals, 
Rudistes, and some mollusks of the former, do not range up into the 
latter. 
The Catadupa Beds. — The outcrops along the Montego Bay Railway 
on the east slope of Great River Valley, on the borders of St. James and 
Hanover at Cambridge and Catadupa, are by far the best localities W° 
have seen for collecting. We have twice visited these localities for that 
purpose. The material is very abundant, but most of the Mollusca are 
poorly preserved. It contains many determinable species of Fort 'aminif 
era, Echini,and Mollusca, which have been submitted to various specialists 
The fauna so far as studied is as follows : — 
(1) From railway cuttings near Catadupa and Cambridge. Forami- 
nifera. — Many small granular Foraminifera, occurring in vast numbers 
in the shale beds, giving it an oólitic texture on indurating. ‘The fol- 
lowing species were determined by Bagg :— 
Miliolina subrotunda, Montague, Catadupa ; M. cicularis, Bornema™ 
Catadupa; M. seminulum, Linné, Catadupa and Sanbriege; M. 8p» 
Catadupa ; Texto trochus, d'Orb., Catadupa; T. barretti, P. aud 
J., Catadupa ; T. seminulum, P. and J., Catadupa ; Ha aaob goldanis 
P. and J., Catadupa; Pullenia spheeroides, Cambridge; Miliolina semi- 
nulum, var. triangularis. . 
Corals. — The following corals were determined by T. W. Vaughan :— 
From near Cambridge Station, St. James Parish : Turbinoseris jamai 
caensis, Vaughan ; Turbinoseris cantabrigiensis, Vaughan ; Dendració 
cantabrigiensis, Vaughan. 
From Catadupa : Trochosmilia hilli, Vaughan ; Multicolumnastr® 
eyathiformis, (Duncan) ; Diploria conferticostata, Vaughan (= D. cras 
cose 
solamellosa, Duncan, non Edwards and Haime); Diploria conferti 
tata, var. columnaris, Vaughan; Trochoseris catadupensis, Vaugh 
Mesomorpha catadupensis, Vaughan. 
Echinoderms. — Scutellina,! Cambridge and Catadupa ; Acrocidarió” 
Catadupa ; Rapinot pneustio,? Great River; Diplopodia,? Great River) 
Echinolampus,? Great River; Tobias Rotrieve. 
any | 
1 From my collections. 
2 From the collections of the Institute of Jamaica. Macropneustes and Pre 
rhynchus have also been collected from this formation at Mountain Spring» 
Elizabeth, and Maroontown. 
