Fami ly Spoiifl ;vl idae . 

 Genus SPOITL-'LUS linnaeus. 



'^POICDYLUS BOSTRYGHITiiS Guppy. 



Spond:v-lu£ "b ifrons Sowerb;,-, IHoO, -.uart. Jour. Geol. Too. Lonclon, 



vol. 6, p. 53. 

 Fot S. Taifrons Goldfass, 187'5. 

 Spond: lus bostr;. ohites Gupp;^'. 1867, Proc. Sci. Assoc. Trinidad 



for 1867, p. 176. 

 Spondylus bostryehites Guppv. Gabb , 187?, Trans. Am. Philos. 3oo. 



new ser., vol. 15, p. 257. 

 Spondylus b ostryolxites Gupoy. 1874, Geol. Mag., decade 2, vol. 1, 



p. 1-4-5 ( check list). 

 opond.ylus bostrycliites Guppj.', Dall, 1898, Trans. .«ap-rier ""ree Inst. 



Sci., Philadelphia, vol. 3, pt. 4. ':)-p, 758-759. 

 ? "ponci-rlus bostr:^Ghite3 Gupp^?, Dall, 191", ^,-11. U. S. ITat. !'us., 



no. 90, p. 124, pi. 19, ag. 4. 



Description .- "Testa subregularis, rotundata, ventricoss, 

 raargine latiusulco, valide denticalato; extus radiatim costata, 

 costis 5 ad 6 spinif eris ; area cardinali alterius valvae ann-usti- 

 ssina, alterius latiori." (So'-verb,-, 1.^50). 



T^'Pe "' ocalit;y . - oanto Domingo. 



"The type form of this species has a relatively: small number 



