PORIFERA. 



203 



No. 1173. Scyphia propinqua, Munst. 



(Syn. Eudea propinqua, D'Orb.) From the Middle Oolite, (Ehringen, Wir- 

 teniberg. Price, $0.40. 



No. 1174. Siphonia (Hallirhoa) costata, Lamouroux. 



(Syn. Polypothecia septemldba, Benett.) Two speci- 

 mens. The fossil Porifera, belonging to this genus, 

 have a comparatively symmetrical form. The body 

 is bulbous and supported by a slender stem, which is 

 composed of very fine parallel longitudinal tubes, ter 

 minating on the surface of the central cavity. The 

 base of the stem was fixed by root-like processes. 

 From the Upper Greensand, Warminster, England, 

 and now in the private Geological Cabinet of Mr. 

 Ward, of Rochester. 



Size, $1.25. 



No. 



1175. Siphonia . 



Two specimens. From the Cretaceous (?), Germany, and now in the Ward 

 Museum of the University of Rochester. Price $0.75. 



No. 1176. Siphonia radiata ? 



From the Jurassic, Wirtemberg, and now in the Ward Museum of the Uni- 

 versity of Rochester. Price, $0.60. 



No. 1177. Siphonia pyriformis, Goldf. 



Two specimens. These pear shaped Sponges are 

 from the Upper Greensand, Blackdown, England, ( a 

 locality which has furnished many very interesting 

 and peculiar forms of Ponifera), and are now in the 

 Ward Museum, of the University of Rochester. 



Price, $0.60. 



No. 1178. Spongia ramosa, Mant. 



This branched Sponge has cylindrical stems and branches, the terminations 

 of the latter being rounded and full of pores. This specimen is completely in- 

 crusted with flint, presenting a bizarre appearance. From the Chalk of Dover; 

 England, and now in the Ward Museum, University of Rochester. Price, $0.40. 



No. 1179. Spongia . 



Two specimens ; silicified. From the Upper Chalk, Bridlington. England, 

 and now in the private Geological Cabinet of Mr. Ward, Rochester. 



tv„ 11 on o • Price. $0.60. 



No. 1180. Spongia . 



Silicified. From the same locality and Cabinet as the preceding. 



Size, 6x2. Price, $0.60. 



