6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



ALLANTOPORA Lang, 1914 

 ALLANTOPORA CONFINIS, n. sp. 



Plate I, fig. 5 



Description. — The zoariuin incrusts shells and forms uniserial or 

 pluriserial rows of zooecia. The zooecia are distinct, separated by 

 a deep furrow, very elongated pyriform, simply adjacent in the multi- 

 serial portion ; the gymnocyst is large, very convex, smooth, narrowed 

 proximally, forming a caudal portion. The mural rim is thick, rounded, 

 smooth. It bears exteriorly to the termen a row of large spines en- 

 tirely surrounding the opesium. Ovicell and ancestrula unknown. 



Measurements. — 



. f ho = o.2K-o. 20 mm. „ . f Lc = o.6o-o.7S mm 

 (Jpesium<^ , ;; Zooecium-< , 



^ 1 /o = 0.18-0.20 mm I /.c = 0.30-0.40 mm 



Number of zooecia in 4 mm' (=4 square millimeters), 20-22. 



Occurrence. — -Balcombian beds at Muddy Creek and Janjukian at 



Flinders and Mount Gambler, Victoria. 



Cotypes.— U.S. N.M. nos. 85598-85600. 



AMPHIBLESTRUM Gray, 1848 

 AMPHIBLESTRUM GRANDE, n. sp. 



Plate I, fig. I 



Description. — The zoarium is bilamellar. The zooecia are distinct, 

 separated by a deep furrow, very large, little elongated, ogival, sur- 

 rounded on three quarters by a granular gymnocyst. The mural rim 

 is salient, very thin distally, enlarged laterally, much attenuated proxi- 

 mally ; the cryptocyst is shallow, flat, smooth, merging imperceptibly 

 with the proximal gymnocyst ; the opesium is large, terminal, trans- 

 verse, pyriform, slightly tri foliated. The ovicell is hyperstomial, not 

 closed by the opercular valve, globular, smooth, margined by an ecto- 

 oecium, resting on the distal zooecium. 



Measurements. — 



. f/jo = 0.^0-0. 31; mm ' . rL^ = 0.7 S-0.90 mm 



OpesmmJ , ^ ^^ Zooecium-^ , . ^^. 



^ 1/0 = 0.35-0.40 mm I [^ /c = 0.50-0.75 mm 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotype.—U.S.'^.lSi. no. 85602. 



RAMPHONOTUS Norman, 1894 



RAMPHONOTUS (?) LAMELLOSUS, n. sp. 



Plate 2, fig. I 



Description. — The zoarium is bilamellar. The zooecia are distinct, 

 separated by a shallow furrow, very much elongated, pyriform. The 



