355 Dominican Fossils — Maury 191 



53, 1849. ^ ot °f Goldfuss, 1835. 

 Spondylus bostrychites Guppy, Proc. Sci. Soc, Trinidad, p. 176, 1867. 

 Spondylus bostrychites Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 257 



1873. 

 Spondylus bostrychites Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 4, p. 

 758, 1898; pt. 6, p. 1586, 1903. 



We obtained a number of fine specimens of this unfigured 

 species which occurs also at Bowden. A varietal form, chipolan- 

 us, has been described by Dr. Dall from the Florida Oligocene. 



Localities — (Exp'd '16) Bluff 1, Cercadode Mao (common); 

 Zones B and F, Rio Gurabo at Los Quemados. 



Spondylus gumanomocon Brown and Pilsbry 



Spondylus Americanus Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 257, 

 1873. Not of Lamarck. 



Spondylus gumanomocon Brown and Pilsbry, Proc Acad. Nat. Sci. 

 Phila., p. 514, 1912. (Footnote). 



This species is very close to the smaller Gatun vS. Scotti. It 

 can be readily recognized by its great size and dissimilar valves. 

 We have specimens collected by Gabb as well as our own. One 

 of Gabb's shells renamed by Brown and Pilsbry weighed 32^ 

 ounces. 



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

 mados. 



Genus Anomia (Linne) Miiller 



Anomia simplex' d'Orbigny 



Plate 26, Figure 15 



Anomia simplex d'Orbigny, Hist. Pol. y Nat. Isla de Cuba, p. 367, 



1845; pi. 28, figs. 31-33, 1855. 

 Anomia ephippium Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 257, 



1873. Not of Linne. 



We found a single right valve 40 mm. in length. Gabb also 

 found a single specimen measuring 50 mm. The fossil appears 

 very like the recent but, lacking the left valve, one cannot be sure 

 of its complete identity. 



Locality.— (Exp'd '16) Bluff 2, Cercado de Mao.] 



