MUSEUM OF COMPARATIVE ZOOLOGY. 259 



of Morch, which extends its range from Cape Fear, North Carolina, to Cuba; 

 C. algicola C. B. Adams, is found from South Florida to Jamaica; C. uncinatum 

 Gmelin {fide Tryon), from the Florida Keys to the Bahamas and Eastern An- 

 tilles ; it is frequently called atratum Born, and antillarum Dkr. C. eburneum 

 Brugiere extends throughout the Bahamas and Antilles; C. literatum Born, and 

 its variety semiferrugineum Lamarck, from Florida southward. C. muscarum 

 Say, inhabits the north shores of the Gulf of Mexico, West Florida, and south- 

 eastward to Jamaica; C. var labile C. B. Adams (+ C ferrugineum Say, non 

 Brugiere, C. versicolor C. B. Adams, non Philippi, etc.), Florida and the An- 

 tilles. C. minimum Gmelin (+ C. nlgrescens, septemstriatum, etc.) I have not 

 seen from north of Florida, but it is common in the Antilles and on the Ba- 

 hamas. It has been reported from Georgia, but this remains unconfirmed, 

 though it reaches Venezuela. There is a species of Vertagus, like V. Kochii, in 

 the National collection, which was collected at Barbados in 1864 by Lieut. Fitz- 

 gerald. C. Rawsoni Krebs is a peculiar, nearly smooth, variegated species, 

 which looks remarkably like a small Buccinum hydrophanum. It is found in 

 the salt lagoons of the Bahamas. There are a number of other species, like 

 C. Sagrce Orbigny, which are known to inhabit the Antilles, and a vast num- 

 ber of synonyms for the species I have already cited, but I refer only to species 

 which I have confirmed by satisfactory series of specimens to have come from 

 the region. 



In Ceritlddea there are five or six well marked species known from this re- 

 gion, and several doubtful species. C. costata Wood extends from West Flor- 

 ida to the island of Jamaica; C. scalar ij arm is Say, from Georgia to Key West; 

 C. varicosa Sowerby has been received from Texas, Cuba, and Jamaica; 

 C. lurrila Stearns, from West Florida and the Bahamas; C. tenuis Pfr., or 

 ambigua C. B. Adams, is a common species in the Bahamas lagoons, and has 

 been received from Jamaica. C. scalata Heilprin has been collected at Egmont 

 Key and Stump Pass, on the west coast of Florida, but it is not certain that 

 the specimens were recent. It was described as a Pliocene fossil from South 

 Florida. 



Family VERMETID^E. 



Genus SILIQUAItIA (Brugiere) Lamarck. 

 Tenagodes Fischer, Tenagodus Guettard, etc. 



As Guettard did not adopt the Linnean nomenclature, there is no occasion 

 for uprooting a name, like Siliquaria, which has been familiar to naturalists 

 for a century. 



There are two species of this genus in the Antilles, which come from deep 

 water, and one, S. ruber Schumacher, which appears to inhabit the shores, near 

 or not far from low-water mark. The latter species was not collected by the 

 Blake, but may be recognized by its slit, largely undulated so as to present the 

 appearance of a chain. 



