318 SHELLS AND SHELL-FISH. PART II. 



3. fulminata. En. M. 381.f. 2. 5. Lyriformis. Zool. 111. i. 54. 



4. bullata. Zool. 111. ii. pi. 15. concinna. Brod. Z. P. iv. 43. 

 nucleus. Lam. No. 44. mitrseformis. Lam. No. 43. 



VOLUTILITHES Sw. Spire acutely pointed ; plates gene- 

 rally faint, sometimes obsolete, (fig. 81. e.) 



1. spinosa. En. M. 392. f. 6. 4. Cithara. En. M. 384. f. I. 



S.musicalis. En. M. 392.f. 4. 5. bicorona. En. M. 384. f. 6. 

 muricina. Ib. 383. f. 1. crenulata. Ib. f. 5. 



3. rarispina. En. M. 384. f. 2. costaria. Ib. 383. f. 

 labrella. Ib. 384. f. 3. ty. Ib. f. 6. 



SCAPHELLA Sw. Shell smooth, almost polished; outer lip 



thickened internally ; suture enamelled ; lower plaits 



the smallest; apex of the spire various, (fig. 81. c.) 



l.fusiformis Sw. Bligh, Cat. Junonia. Ex. Conch, pi. 33. 



2. undulata. Ex. Conch, pi. 27. 3. stromboides. (fig. 12. a, 



volvacia. Chem.f. 1339. 6. p. 123.) 



Zebra Sw. (fig. 81. c.) 5. p ap illosa Sw. Sow. Gen. 



SUB-FAM. 2. MITRAN.E. 



Spire produced, acute, generally as long* or longer 

 than the aperture ; plaits 4 5, the lower smallest. t 



MITBA. No internal channel or groove at the upper 

 extremity of the aperture ; outer lip curved from its 

 two extremities ; the base of the aperture 

 not contracted, the interior always smooth ; 

 spire lengthened, acute ; shell without co- 

 ronating tubercles, but not polished. Re- 

 presenting the Volutes and TurUnellidte. 



Mitra Sw. Shell entirely smooth, or with 

 the sutures very slightly crenated ; aper- 

 ture very effuse at the base. (fig. 83.) 



episcopalis. En. M. 369. f. 2. ambigua. Zool. 111. ii. 30. f. 2. 



pertusa. Ib. 369. f. 1. 3. fulva. Ib. f. 3. 



versicolor. Martyn, 1. f. 23. Terebralis. En. M. 369. f. 5. 



nivosa Sw. Bligh, Cat. lactea. Ib.^371. f. 2. 



* Except in Concehelix. f Except in some Mitreol<e. 



