i 



COLUMBAEirM. 53 



third from the coronal fringe serrated, the others carrying 

 short, crowded, recurved prickles. Beak encircled with prickly 

 ridges." — Tate. Inner margin of the aperture covered with a 

 leaf-like expansive callosity, extending into the anterior canal, 

 which is very long. 



This species has considerable analogy with the living C. pagoda 

 var. spinicincta, Von Martens, of West Australian seas, and it is 

 highly probable that C. acanthostephes is merely a synonym of 

 that ; in the absence of an example of a shell of the living species 

 alluded to, the present writer hesitates to further deal with the 

 matter, however. 



Dimensions. — Length 38 mm.; breadth 13 mm.; length of 

 aperture 7 mm. ; length of anterior canal 21 mm. 



Form, and Loc. — Eocene : Victoria. 



70416. Three specimens, from Port Jackson. Purchased. 



73229. Several specimens, from Schnapper Point. Purchased. 



G. 4274. One example, from Muddy Creek. 



Presented hy John Pennant, Esq. 



Columbarium foliaceum, Tate (sp.). 



1888. Fusus foUaeeus, Tate, Trans. Eoy. Soc. South Aust. vol. x. p. 132, 



pi. vii. fig. 10. 



1889. Fusus foliaceus, Dennant, id. vol. xi. p. 41. 



1893. Fusus foliaceus, Tate and Dennant, id. vol. xvii. pt. 1, p. 219. 



Protoconch of the same general character as in C. acanthostephes, 

 but not so bulbous and relatively much smaller. A remarkable 

 feature is, that in the brephic stage, and immediately after the 

 animal emerged from the capsule, bold longitudinal ribs make 

 their appearance ; but as the neanic stage is approached these 

 disappear, and are not resuscitated in the adult. These costae, 

 which seem to be connected with longitudinal striae on the 

 protoconch (seen when the latter is well preserved), are nodosely 

 angulate medially. The growth of the shell from the neanic stage 

 onwards exhibits no variation worthy of record. 



The shell differs from C. acanthostephes in having what Professor 

 Tate calls the " coronal fringe " well developed by the absence 

 of "prickles," and the plain character of the area from the 

 peripheral angulation to the suture. The shell as a whole is 



