SEEPULACEA. 273 



SENOCLITA. Schum. Cineras, Leach. See Conchodebma. 



SEPTAEIA. Lam. See Teeedo. 



SEPTUM. (Lat.) An enclosure, applied to the thin plate of 

 Crepidula, fig. 239 ; also to the plates dividing the chambers of 

 multUociilar shells. 



SEEAPHTS. Montf. 1810. Tebebellum convolutum, Lam. 

 Eig. 451. 



SEEPXJLA. Auct. (^ little serpent.) Fam. Serpulacea, Lam. 

 — Descr. Tubular, narrow, poiated at the apex, gradually widen- 

 ing towards the aperture, attached irregularly, sometimes 

 spirally, twisted, imbricated ; keeled or plain ; aperture gene- 

 rally round, with the edge simple, or angulated by the ter- 

 mination of external ribs or keels. — 06s. This, description 

 is intended to include the genera Serpula, Spirorbis, Yer- 

 milia, Galeolaria, &e. The Serpulae abound in all seas, on 

 rocky shores, at any time covered by water, attached to any 

 kind of mariue substance, whether moveable or stationary. 

 The fossil species occur in almost aU tertiary strata. PL i. fig. 

 4 to 7. 



SEEPULACEA. Lam. The fourth family of the order Seden- 

 tary Annelides, Lam. containing the foUowiag genera of tubular, 

 irregular shells. 



1- Seepula, attached by a small portion of the shell. Fig. 4. 



2. Spieoebis, attached by the whole length, coiled. Eig. 5. 



3. GrAiEOiiAEiA, with the open extremity raised, and the 



aperture tongue-shaped, Eig. 6. 



4. Yeemilia, attached by the whole length, straight or 



waved. Eig, 7. 



5. Spied GLTPHLUS, which hollows a bed in the body to which 



it is attached. Eig. 8. 

 Sowerby* gives satisfactory reasons for reuniting the whole 

 of the preceding under the name Seeptjla, 



6. Magiltjs, which burrows in coral ; outer lip reflected. 



Eig. 9 to 10, 



* Genera of Shells, published at 50, Great Russell Street, Bloomsbury. 



