92 



UNIVALVES. BUCCINUM. 



Duplicatum — Press-screw. 

 Lanceatum — Lancet, [^striped. 

 *Dimidiatuin — Orange Sf white- 

 M urinum — Mouse-colored. 

 Tigrinum — Tiger. 

 Acus — Needle. 

 S uccinctus — Girt. 

 Commaculatum — Patched. 

 Hastatum — Javelin. 

 Aciculatum — Acicular. 

 Phallus — Sinuated. 

 Flumineum — River. 

 Asperum — Rough. 

 Muricinum — Murex-like. 

 Tuberculatum — Tuherculated. 

 Punctulatum-^P«wc^Mrerf. 

 Acicula — Sharp-pointed. 

 Fasciolatum — Banded. 

 Niveum — Snowy. 



Mucronatum — Pointed. 

 Digitellus — -Finger. 

 Obliquum — Ohlique-striated. 

 Chalybeum — Steel-blue. 

 Fluviatile — Fluviatile. 

 Radiatum — Rayed. 

 Lividulum — Livid. 

 E dentulum — Toothless. 

 Pugio — Dagger. 

 Canaliculatum — Canalicidated. 

 Varicosum — Veined. 

 Cuspidatum — Acuminated. 

 Cinereum — Cinereous. 

 Virgineum — Virginia. 

 Proximatum — Proximate. 

 Monile — Necklace. 

 Cingulatum — Girdled. 

 G eminum — Divided. 

 *Obtusulum — Obtuse. 



STROMBUS. — Winged or Claw-Shell. 



Animal — a Limax: Shell univalve, spiral ; apei'tureniuch 

 dilated; the lip expanding, and produced into a groove 

 leaning to the left. 



The distinguishing- rharatter of this genus, of which there 

 are fifty-three species, consists in the position of its beak, 

 which inchnes to the leftj but as the younger shells are 

 sometimes wholly destitute of any beak, a confusion with 

 many other genera is often difficult to be avoided. 



The Strom bi seem to have a propensity to extend their 

 outer lip, either into the form of an expanded wing, hence 



