The form selected as type is subturbinate and very little 

 curved. It is 28 mm. in height, with a broad circular calice 

 18 mm. in diameter (figs. 4a, b). The horn-shaped corallum (flg. 

 4c) is 32 mm. high, and the diameters of its slightly elliptical 

 calice are 16 mm. and 15 mm, A tall cylindrical variety, though 

 broken off at some distance from the base, is yet 37 mm. high. 

 The best preserved calice in my collection belongs to a fractured 

 corallum of similar outline ; it is circular and 13 mm. in diameter 

 (fig. 4o?). Smaller examples than any of these, mostly horn- 

 shaped and tapering, are also common. 



Locality, d^c. — Abundant in the Eocene of Brown's Creek, and 

 rare at Hamilton Creek. These are neighbouring beds in the 

 Aire River district, V^ictoria, both of which were discovered by 

 Mr. Kitson in the latter part of 1899. 



The species name is in compliment to Mr. H. Herman, Acting- 

 Government Geologist, who, in conjunction with Mr. Kitson, 

 assisted the late Professor Tate and myself in examining the 

 tertiary deposits of this district in the early part of the present 

 year. 



EXPLANATION OF PLATE. 



Fig. 



1. Holcotrochus scriptus—a, corallum, 6 diam.; 6, calice, 8 diam. 



2. Desmophyllum Joannense — a, corallum, 2-5 diam.; 6, calice, 5 diam. 



3. Deltocyathus suhviola — a, section of a corallum, showing internal 



structure of the calicle, 3 diam.; /), caHce of type ppecimen, 6 diam. 



4. Parasmilia Hermani — a, corallum, nat. size ; 6, calice, 2 diam.; c, 



corallum of another specimen, ijat. size; d, calice of a third speci- 

 men, 3 diam. 



