of the British Jurassic Bryozoa. 190 



sides of the face ; tlie distance between two rows on the same 

 side is of medium length. 



DLstrihution. — British : Inferior Oolite. Foreign : Ba- 

 thonian, France. 



Genus 3. Haplocecia, gQ,\\. nov. 



Diagnosis. — Entalophoridee in which the zooecia are short 

 and angular in form. The peristomes are never greatly 

 raised ; the apertures are small and they are arranged either 

 lineally or quincuncially. 



Type species : Haplocecia straminea (Phillips), 1829. 



Affinities. — This genus is proposed for some species which 

 differ from Entalophora and Spiropora by having short 

 hexagonal zooecia instead of long regularly tubular ones. 

 As the aperture is not truly terminal and is somewhat con- 

 tracted, the zooecia show a certain resemblance to those 

 of the Cheilostoniata ; if the ordinarily accepted definitions 

 of Cheilostomata and Cyclostoraata be rigidly applied the 

 members of this genus ought to enter the former order. Some 

 of the species have been included in MelicertiteSj a genus of 

 which the type species is very uncertain. These forms cannot, 

 however, enter Melicertites^ as accepted by Pergens, whose 

 use of this name may be conveniently accepted. 



1. Haplocecia straminea (Phillips), 1829. 



3fiUepo>-a straminea, Phillips, 1829, Geol. Yorks., Part I., Yorks. 



Coast, p. 143, pi. vii. fig. 8. 

 Cricopora straminea, Morris, 1843, Cat. Brit. Foss. p. 34. 

 Intricaria straminea, d'Orbigny, 1849, Prod. Pal. t. i. p. 289. 

 Non Laterotubigera straminea, d'Orbigny, 1852, Pal. fran?., Terr. cr6t. 



t. V. p. 715. 

 Entalo2)hora straminea, id. ibid. p. 779. 

 Non Spiropora straminea, Haime, 1854, Bry. jur., M^ni. Soc. g<5oI. 



France, s^r. 2, t. v. p. 196, pi. ix. tig. 6. 

 Non Spiropora straminea. Vine, 1883, Rep. Brit. Assoc. 1882, p. 262. 

 Pustulopora straminea, Gregory, 1893, Cat. Jiir. Bry. Y^'ork Museum, 



Rep. Yorks. Phil. Soc. 1893, p. 60, tig. 2. 

 Pustulopora Quenstedti, Waagen, 1868, Zone Amm. Soiverbyi, Geogn. 



Pal. Beitr. Bd. i. Heft 3, p. 641, pi. xxxii. fig. 10. 



Diagnosis. — Zoarium tufted, loose, and irregular ; branches 

 of medium thickness. 



Zooecia in regular, horizontal, closely adjoining series, 

 usually hexagonal and bisymmetrical, but variations in growth- 

 pressure render some irregularly polygonal. Aperture trans- 

 versely elliptical. Peristomes slightly raised. Front wall 

 punctate. 



