128 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



inasmuch as it contains a distinctive fauna abundant in specimens if not 

 in species, including several species of Cretaceous fossils which have trans- 

 gressed into the Eocene. The three members of the formation, the Cata- 

 dupa, Chapelton, and Port Antonio respectively, are paleoutologically 

 allied, tlie 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 we 

 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 Foraminif- 

 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, Forarai- 

 nifera. — Many small granular Foraminifera, occurring in vast numbers 

 in the shale beds, giving it an oolitic texture on indurating. The fol- 

 lowing species were determined by Bagg : — 



Miliolina subrotunda, Montague, Catadupa ; M. cicularis, Borneman, 

 Catadupa; M. seminulum, Linne, Catadupa and Cambridge; M. sp., 

 Catadupa ; Textularia trochus, d'Orb., Catadupa ; T. barretti, P. and 

 J., Catadupa ; T. seminulum, P. and J., Catadupa ; Haplostiche soldani, 

 P. and J., Catadupa; Pullenia sphseroides, Cambridge; Miliolina semi- 

 nulum, var. triangularis. 



Corals. — The following corals were determined by T. W. Yaughan : — 



From near Cambridge Station, St. James Parish : Turbinoseris jamai- 

 caensis, Vaughan ; Turbinoseris cantabrigiensis, Yaughan ; Dendracis 

 cantabrigiensis, Vaughan. 



F'rom Catadupa : Trochosmilia hilli, Yaughan ; Multicolumnastr?ea 

 cyathiformis, (Duncan) ; Diploria conferticostata, Yaughan (= D. cras- 

 solamellosa, Duncan, non Edwards and Ilaime) ; Diploria conferticos- 

 tata, var. columnaris, Vaughan ; Trochoseris catadupensis, Vaughan ; 

 Mcsomorpha catadupensis, Vaughan. 



EcJiinoderms. — Scutollina,^ Cambridge and Catadupa ; Acrocidaris,^ 

 Catadu])a ; Ivapinot pncustio,' Great River ; Diplopodia,^ Great River ; 

 Echinolampus,^ (ireat River; Echinauthus,'* Retrieve. 



1 From my collections. 



'^ From tlie collections of the Institute of Jjimaica. Macropneustes and Pygo- 

 rhymhiis have also bctMi collected from this formation at Mountain Spring, St. 

 Elizabeth, and Maroontown. 



