62 LEPIDOPLEURUS-TKA< HYDKRMON. 



APPENDIX I. 



The following pages contain the descriptions of certain species 

 omitted in the body of this monograph, and additional descriptive 

 and bibliographic matter relating to other forms. 



Family LEPIDOPLEURID& (Vol. XIV, p. 1.) 

 Genus LEPIDOPLEURUS Risso. 



L. ALGESIRENSIS Capellini. PI. 14, figs. 20, 21. 



Shell oval, not carinated ; whitish-tawny ; end valves and lateral 

 areas ornamented with concentric folds ; central areas smooth to the 

 naked eye, but longitudinally striated when viewed under a lens. 

 Girdle with moderate scales. 



Length 16, breadth 10 mill. (CapelHni.} 



Alcjesira*, Andalusia (Tarnier) ; Coast of Provence (Martin); 

 Marseilles (Marion); Civitavecchia (Donati) ; Sicily (Calcara, Ara- 

 das, Monterosato) ; Palermo (Monterosato). 



Chiton algesirensis CAPELLINI, Journ. de Conch., June, 1859, p. 

 827, t. 12, f. 3, a'", V", c'". CARUS, Prodromus Faunie Mediterra- 

 nere, ii, p. 180. Leptochiton granoliratus CPR., MS. 



There can be no doubt of the identity of Capellini's species with 

 the L. rjranoliratus of Carpenter, described from Mogador, which I 

 have described and figured (vol. xiv, p. 14), from examples collected 

 by McAndrew. 



Family 1SCHXOCHITONID& (Vol. XIV, p. 253.) 

 Genus TRACHYDERMON, Carpenter. 



Trachjdermon Cpr., PILS., Manual XIV, p. 67. 



Craspedochiton SARS, type C. war// in at us Penn.=cinereu8 L. 



Boreochiton >\ R8, part (C. ruber and inarmoreus). 



I. >HTS, (C. albus L. and exaratus Sars). THIELE, Das 



Gebissii, p. 879, (L. albus L). 



Adriclla THMII. Das Gebiss der Schnecken, ii, p. 391, 1893. 

 Type A. variegata, Phil. 



/ TII i! i i . /. '.. p. .'.'._'. Type /. f.nnicea Coutli. 



Shell oval, carinated. Valve- delicate, the lateral areas indis- 

 tinct ; surface minutely irranulated, the granulation rather even and 



