APPENDIX. 



9e>g)ee 



22. SERPULA FUSCATA. 



S. testa irregulariter contorta ; lineis elevatis^ inter- 

 ruptis, oljsoletiusculis ; colore violaceo-fiisco. 

 Ohs. A specimen of this shell is named Serpula 

 fuscata in Mr. Geo. Humphrey's collection. The 

 tube is very large, being more- than an inch wide in 

 some parts. 



23. SERPULA MAXIMA. 



S. testa irregulariter contorta, Ijeviuscula, carina dor- 

 sal! antice in spinam nonnunquam desinente : aper- 

 tura expansa, testarum juniorum subtrigona, oper- 

 culo corneo. 



Ohs. Several specimens of this species exist in 

 the collection; they are attached to, and some of 

 them deeply imbedded in coral. It is a very large 

 species, the tubes being almost an inch wide. The 

 aperture in the older shells is round. 



24, SERPULA TRICUSPIDATA. 



S. testa elongata, tenui, trigona, basi affixa, demum 

 porrecta; carina dorsali primum denticulata ; aper- 

 tura tricuspidata. 



Ohs. Two specimens of Terebratula vitrea in 

 this collection are adorned \AX\\ several of this sin- 

 gular species of Serpula, which does not appear to 

 be noticed either by Lainarek or Dillwyn, although 

 it has been long known to collectors. 



N 



