348 ADDENDA AND CORRIGENDA. 



Page 274, after FILOGEANA, and before OTHONIA, add— 

 Genus 48*. SPIRORBIS. 



Daudin, Rec. des Mem. de Mollusques (1800). Lamarck, An. s. Vert. 

 V. (1818). Fleming, Philos. ofZool. (1822); Nat. Hist, of Brit. Anim. 

 (1828) ; Edinh. Encycl. vii. 68. Leach, Encycl. Brit. Suppl. i. 452. 

 Schweigg. Handb. der Naturg. 601. Johnston, Ann. 8f Mag. Nat. 

 Hist. xvi. (1846). Grube, Famil. der Amielid. 



Basal leaves of the branchiaB rolled in a circle or semicircle ; one 

 or. two opercula, not united together when two ; tubes generally iso- 

 lated, entirely attached, twisted into a flat or nearly flat spiral. — Grube. 



Sp. 1. Spirorbis nautiloides. 



Serpula spirorbis, Linfi. Faun. Suec. ed. 2. no. 2204; Syst. Nat. 1265. 



Fabr. Faun. Groenl. 377. Mull. Zool. Dan. iii. 8. tab. 86. f. 1-6. 



Da Costa, Brit. Conch. 22. tab. 2. f. 11. Mont. Test. Brit. 498. 



Pennant, Brit. Zool. iv. 358. tab. 94. f. 1. 

 Spirorbis nautiloides, Lamk. An. s. Vert. Ist ed. v. 359 (1818), 2nd ed. 



V. 613 (1838). Templeton, Loud. Mag. Nat. Hist. ix. 233. Griffith's 



Cuv. Regne An. xiii. tab. 8. f. 6. Grube, Famil. der Annelid. 92. 

 Spirorbis communis, Fleming, Edinb. Encycl. vii. 68 (1820) : Edin. Phil. 



Journ. xii. 245. Johnston, Ami. Sf Mag. Nat. Hist. xvi. (1845). 



Operculum nearly shield-shaped, parabolical; branchial (filaments?) 

 bearded, 3 on each side ; tube opaque, wrinkled, with 3 turns, con- 

 vex above, flat beneath, last turn not keeled. — Gr abe. 

 Hab. Shores of Great Britain. 



{a) English coast (shells only, on sea- weed). 



(6) Coast of England (shells, on sea-weed). 



(c) Ealmouth, W. P.CocJcs. 



Sp. 2. Spirorbis spirillum. 



Serpula spirillum, Linn. Faun. Siiec. ed. 2. 2203 ; Syst. Nat. 1264. 



Fabr. Faun. Grcenl. 376. Pallas, Nov. Act. Petrop. ii. 236. tab. 5. 



f. 21. Mont. Test. Brit. 499. 

 Spirorbis spirillum, Lamh. An. s. Vert. ed. 1. v. Fleming, Edinb. 



Encycl, vii. 68. Johnston, Ann. 6f Mag. Nat. Hist. xvi. Grube, 



Famil. der Amielid. 92. 



Operculum of the form of a finger-nail ; branchial filaments 4 on 

 each side ; tube transparent, with 3 turns, last turn not keeled. — 

 Grube. 

 Hab. British coasts. 



(a) English coast (shells alone, on sea- weed). 



(6) Falmouth (shells, on sea-weed), W. P. Cocks. 



Sp. 3. Spirorbis granulatus. 



Serpula granulata, Linn. Syst. Nat. 1266. Fabr. Faun. Grcenl. 380. 



Mont. Test. Brit. 500. Donovan, Nat. Hist, of Brit. Shells, iii. f. 100. 



Dillw. Recent SheUs, 1074. Penn. Brit. Zool. iv. 359. 

 Serpula sulcata, Adams, Linn. Trans, iii. 255. 

 Spirorbis granulatus, Fleming, Edinb. Encycl. vii. 68. Brqwn^s llliist. 



