X1X 
PECTINARIA. Conchilega, 7. 
Belgica, 5 (da). Tumbricalis, 7. 
Cirrhata, 7. 
SABELLARIA. | Arenaria, 8. 
Aiveolata, 6 (e). | Subeylindrica, 8. 
| Setiformis, 8. 
TEREBELLA. Curta, 8. 
Chrysodon, 6. Compressa, 8. 
PILI LDP LILILILPLIIOIOLIL 
eee 
specimen described came from the N.W. coast of Ireland, 
and was presented by its discoverer to Mr. Haniey, by 
whom it was transferred to the valuable collection of W. 
Metcalfe, Esq. 
(d) I received from Mr. Bean an arcuated and much 
more tajering and slender variety, which perfectly agreed 
with Muller’s figure (Zool. Dan. ¢. 26, f. 2,) of the 
sheath of his Amphitrite Auricoma. 
(e) There are two curious varieties (?) of this shell, the 
first possessing the honeycomb appearance and parallel 
tubes of the type, but constructed of coarser materials, is 
usually termed S. Crassissima. The tubes of the other 
have no regular arrangement, and their mouthis are devoid 
of the usual patuious rim. It forms large banks at Mar- 
gate and Ramsgate, and is the 8. TuBuLartia of Chenu’s 
{Illustrations Conchiliologiques. 
