2,5* Dominican Fossils — Maury 87 



212. Not P. veraguensis liinds. 

 Phos elegans Guppy, Quart. Jour. Geol. Soc. London, vol. 32. p. 524 

 1876. Exclude synonymy. 



Dr. Dall most kindly compared our Dominican shells with 

 Guppy' s Bowden type, and pronounced them identical. Ours 

 appear slightly more shouldered, with a less convex body whorl, 

 and usually show a number of varix-like thickenings which 

 Guppy does not mention in his description. The shell was also 

 found by Guppy at Cumana. 



Localities.- — (Exp'd '16) Zones D and E, Rio Gurabo at 

 Los Ouemados (Common); Trail Hato Viejo to Potrero, Rio 

 Amina. 



Phos Guppyi Gabb 

 Plate 14, Figure 9 



Phos Guppyi Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 212, 1873. 



Phos Guppyi Guppy, Quart. Jour. Geol. Soc., London, vol. 32, p. 

 524, 1876. 



Strongylocera Guppyi Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 6, p. 

 1584, 1903- 



This shell is particularly interesting because of the changes 

 in sculpture it assumes at different stages of its early life. The 

 recent P. Beauii Fischer, from Guadaloupe has some resem- 

 blance to our fossils, but the spiral sculpture is much weaker. 



P. Guppyi is also found at Bowden. 



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

 Quemados (Rare). 



Phos semicostatus Gabb 

 Plate 14, Figures 11, 12 

 Phos semicostatus Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 212, 1873. 

 P. semicostatus has never heretofore been figured, but we 

 have a number of metatypes sent by Gabb which he collected in 

 Santo Domingo in the early Seventies. 



The Isthmian analogue is the much larger shell, P. subsemi- 

 co status Brown and Pilsbry. 



