336 CRETACEOUS PALEONTOLOGY. 



Formation and locality. Vincentown limesand, Vincentown. 



(154). 

 Geographic distribution. New Jersey. 



Membranipora nematoporoides Ulrich and Bassler n. sp. 

 Plate XXIV., Figs. 1-2. 



Description. Zoarium consisting of narrow subquadrangular 

 or subcylindrical branches .6 to .7 mm. in diameter which are 

 celluliferous on all sides, the zocecia being arranged in from 

 four to six vertical rows. Zooecia about twice as long as wide, 

 their length about .33 mm., surrounded by a rather sharp, slightly 

 elevated rim which is surmounted by a series of sharp tubercles 

 or minute spines. Avicularia rather numerous, very large and 

 beak-like. 



Remarks. In its method of growth and general aspect this 

 species resembles members of Ulrich's genus Nematopora. The 

 species is not uncommon at Vincentown, and may be easily 

 recognized by the spines surrounding the zocecial apertures and 

 by the large beak-like avicularia. 



Formation and locality. Vincentown limesand, Vincentown 



(154). 

 Geographic distribution. New Jersey. 



Membranipora jerseyensis Ulrich and Bassler n. sp. 

 Plate XXIV., Fig. 3. 



Description. Zoarium bifoliate, zocecia from .6 to .85 mm. in 

 length and from .45 to .50 mm. wide, arranged more or less 

 regularly in quincunx. Zocecial apertures subelliptical in out- 

 line, .4 to .5 mm. in length, their width from one-half to three- 

 fourths the length. The spaces between the zocecial apertures 

 rounded and occupied by numerous, rather large pores. Ovicells 

 usually abundant. 



Remarks. This species may be recognized by the numerous 

 pores occupying the interapertural spaces. It is not uncommon 

 at Vincentown. 



Formation and locality. Vincentown limesand, Vincentown 



(154). 

 Geographic distribution. New Jersey. 



