130 MONOGRAPH OF THE FOSSIL POLYZOA OF THE 



proximal margin, but not emarginate ; presenting the appearance of the mouth of a 

 pitcher when viewed from before ; the edge adjoining the mouth on that side slopes 

 inwards somewhat, thus heightening the resemblance. The proximal edge of the lip, 

 furthest from the mouth is elevated above, and overhangs somewhat the surface of 

 the cellule. Surface minutely and closely punctate, but not perforate (?). " 



Locality and position. — From the Miocene marl, of New Jersey, encrusting a speci- 

 men of Ostrea percrassa, Con. Coll. W. M. G. 



This magnificent species, of which we have only seen a single colony, resembles in 

 the shape of the cellules, G. radiata, T. and H. It can be at once distinguished, how- 

 ever, by the peculiar, pitcher-shaped mouth. The mouth of C. radiata, is simple and 

 the cellules are broader. 



Sometimes, though rarely, the anterior margin of the mouth degenerates to a mere 

 line, but the lip-like character of the posterior margin is always more or less persist- 

 ent. We are not able to detect any actual perforations of the superficial crust as in 

 C. Janewayi ; the punctations appearing to be merely minute depressions of the sur- 

 face. They appear to be evenly and regularly distributed over the whole surface, ex- 

 cept the lip, which is smooth. No abortive cellules nor ovarian vesicles exist in the 

 specimen before us. 



C. californiensis, n. s., fig. 12. — Colony encrusting in irregular patches. Cellules 

 arranged irregularly ; oval to rounded hexagonal, prominent in the middle. Mouth 

 anterior, almost terminal, semi-circular to oval or subquadrate ; proximal edge usually 

 straight ; bounded by a slightly raised, but not thickened lip, best developed anteriorly, 

 not always present posteriorly. Surface much elevated about the centre of the 

 cellule, sometimes with a distinct tubercle, from which the surface slopes in all direc- 

 tions. Around the edge is a row of large pores, not always, however, encircling the 

 mouth. Besides these there is usually a row of smaller ones behind the mouth, and 

 at times the whole surface of the cellule is perforate. From Santa Barbara, Cal., con- 

 sidered to be Miocene, by Mr. Conrad. 



The very elevated centre of the cellule in this species is its strongest distinguishing 

 character. There is never a distinct pore at this point, although, we have frequently 

 observed a perforation of irregular shape, the result of attrition. 



In some colonies, the surface is perfectly intact except the marginal row of pores, 

 in others it is punctate, but not perforate, while at other times it is strongly cribrate. 

 All of these characters can sometimes be observed in the same colony. 



We are indebted to Dr. A. L. Heermann, for this and the other California species, 

 collected by him several years ago, and placed in the Museum of the Academy of 

 Natural Sciences of Philadelphia. 



C. bellerophok, ii. s., fig. 13. — Colony encrusting, testaceous, composed of cellules 

 juxtaposed, placed irregularly. Cellules short, without any obvious separation 



