259 Dominican Fossils — Maury 105 



obtained some years ago in a deposit of asphaltum in Trinidad. 

 At that time I followed Dr. Dall in identifying them with Gabb's 

 C. Woodii from the Shiloh marls, New Jersey. But the typical 

 shells are very different and it seems best to designate the Do- 

 minican and Trinidadian form by a distinctive name. For this 

 Henekeni would seem appropriate, since Colonel Heneken first 

 collected fossil shells in Santo Domingo. 



Genus Coralliophila Adams 

 Co7-alliophila mioce?iica Guppy 



Plate 18, Figure 6 

 Purpura miocenica Guppy, Geol. Mag. London, p. 410, pi. 16, fig. 9, 



1874. 

 Coralliophila miocenica Dall, Trans. Wagner, Inst., vol. 3, pt. 6, p. 



1584, 1903. 

 Coralliphila miocenica has not been reported before outside of 

 Jamaica. Our Dominican shells resemble Guppy 's figure, but 

 the canal is somewhat shorter. Possibly they represent a variety 

 of the Jamaican species. 



Localities. — (Exp'd '16) Zone D, Rio Gurabo at Los 

 Quemados. 



C. SUPER-FAMILY T^ENIOGLOSSA 

 Genus Simpulum Klein 

 Simpulum pileare Lamarck 

 Triton pileare Lamarck, An. sans Vert., 7, p. 82, 1822. 

 Triton pileare Kiener, Icon. Coq., Viv. p. 15, pi. 7, fig. 1. 

 Tritonium lineatum Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 211, 



1873. 

 Tritonium pileare Dall, Trans. Wagner Inst., vol. 3, pt. 1, page 161, 



1890. 

 Lampusia pilearis Dall and Simpson, Bull. U. S. Fish Comm., vol. 



20, pt. 1, p. 417, for 1900 (1902). 



A fragment from the Rio Gurabo bluffs agrees in form and 

 sculpture with shells of 5". pileare from the Monte Cristi beach, 

 but the fossil has dorsal humps recalling those of 5. chlorostomum. 

 In the Newcomb collection, however, there are specimens of 

 pileare from the Philippines with similar humps. Gabb referred 

 his specimen to the related, perhaps identical shell, S. lineahim 



