526 E. J. L. GTJPPY OX THE MIOCENE FOSSILS OE HAITI. 



64. Colttmbella vExiJSTA, Sow. G. J. vol. vi. p. 46, pi. ix. f. 6. 



For this species Gabb creates a new genus Metulella, in which he 

 includes another shell found by him in the Haitian Miocene and de- 

 scribed as Metulella fusiformis, Gabb, a figure of which is given by 

 him in Journ. Acad. N. S. Phil. 1872, pi. xi. f. 3. 



65. COLTJMBELLA GEADATA, Guppv, G. J. Vol. Xxii. p. 288, pi. XVI. 



f. 10. 



I am inclined, upon a reexamination of the fossils, to consider 

 C. ambigua, Guppy, as only a marked variety of C. gradata ; and I 

 should include under the same name the Strombina caribwa of Gabb. 

 The Cumana specimens of C. gradata exhibit all the characters as- 

 cribed by Gabb to his S. caribaia, including the Ranella-like flatten- 

 ing, which is less pronounced in the Jamaican examples, and not found 

 at all in the form called O. ambigua. I further doubt if C. wflata, 

 Gabb, is separable from C. gradata. 



6G. Colttmbella nAiTExsis, Sow. G. J. vol. vi. p. 46. 



From the description I should suppose that G. evilis, Gabb, may 

 be comprised under this name. 



67. Oliva cylixdeica, Sow. G. J. vol. vi. p. 45. 



I cannot find any sufficient characters upon which to base a sepa- 

 ration into distinct species of the Olives found in the West-Indian 

 Miocene. Some of them approach more or less closely to 0. reticu- 

 laris ; but I am not sure of their specific identity. One of my spe- 

 cimens of 0. cylindrica from Jamaica is more than 3| inches long, 

 and has lost about J inch of its spire. Gabb names five other species ; 

 but I can give no certain opinion as to their validity. 



Gabb describes under the name of Ploelielcea crassilabrum (Proc. 

 Acad. N. S. Phil. 1872, p. 971, pi. xi. f. 5) a form of Olive which I 

 have not met with. 



68. Ancillaeia olandifoemis, Lam. 



I am not certain of the distinctness of my A. pingitis (Jamaica) 

 from this species. 



69. Pletjeotoma haitexsis, Sow. G. J. vol. vi. p. 50. 



P. Barretti, Guppy, G. J. vol. xxii. p. 290, pi. xvii. f. 6. 



Gabb considers P. haitensis to bo the same as P. virgo, and includes 

 in the synonymy (besides P. Barretti) P. JelsJcii, Crosse, and P. an- 

 tillarum, Crosse. 



70. Pletjeotoma hexekeni, Sow. G. J. vol. vi. p. 50, pi. x. f. 6. 

 P.jaquense, Sow. 1. c. p. 51. 



I concur with Gabb in the fusion of the above two specific names ; 

 and I would add his P. longicaudata and P. Jamierosa to the syno- 

 nymy. 



