12 



NOTICE OF UNDESCRIBED ZOOPHYTES 



selves ; but the young specimens as well as the old, are sub- 

 ject to great variety in character. 



Some of the cup-shaped sponges attain a large size ; I 

 have one which measures 12 inches in diameter. 



Many specimens in my possession exhibit characters which 

 apparently indicate new species, besides those about to be 

 described. I have however thought it best only to give an 

 account of such as are sufficiently perfect to afford a dis- 

 tinct idea of the character. 



SlPHONIA. 



1. Siph. clava. — Club-shaped ; gradually increasing in size till very near 

 the crown : the larger canals, after spreading widely in the substance 

 of the body, are crowded together at the top, presenting a pentago- 

 nal, or hexagonal appearance. Fig. 2. 



The shape of this species is very regular, as will be seen 

 from the annexed figure, (Jig. 2.) ; the original is 

 seven inches in length : the stem is pierced by a 

 single canal, for about an inch and a half from the 

 bottom : about an inch higher, four or five prin- 

 cipal canals, and several smaller ones shew them- 

 selves ; the subjoined sketch, (Jig. 3.) drawn of the 

 natural size, will give some idea of the appearance : 

 still higher, the canals increase in number, and 

 are considerably spread in the body of the fossil. 

 3 j*msnm^ w(¥»v 4 



At the crown there seems to be a still greater number, and 

 they are so crowded, as almost to represent a honeycomb ; 

 figure 4, which is drawn of the natural size from a specimen 

 a little ground down at the top, will give some idea of this 

 arrangement. 



In specimens which have been rolled on the beach, and 

 which are consequently without the external covering, the 

 whole surface appears studded with minute pores ; these are 

 the orifices of small radiating tubes, which communicate with 

 the larger canals. 



This species does not appear to be very rare. 



2. Siph. anguilla. — Elongated, cylindrical, nearly of an equal size 

 throughout ; length equal to eight or more times the breadth ; larger 

 canals not crowded at the summit. Fig. 5. 



