BY E. F. KALLMANN. 515 



ing to lowly-massive, rising above into short, slender, digitiforrn 

 processes; in the varietal form (so far as known) consisting of a 

 compressed, plate-like, sessile basal portion soon completely 

 dividing above into a single series of long, slender, tapering 

 digitations. Surface acuteh^ conulose, the conuli usually not 

 ver}' distinct except on the processes, where they are slender 

 and acuminate. Surface minutely reticulate, though not always 

 visibly so to the naked eye. Skeleton in the typical form of the 

 species approaching in structure to that of A. victoriana; in the 

 variety similar to that of A. plicata. Spiculation differing from 

 that of the foregoing two species only in the absence of micro- 

 strongyla. 



Loc. —Port Phillip (typical form). Off Botany Bay (variety). 



It is very probable that the two forms which I associate under 

 this species, - one of which I distinguish as a variety, reducta, — 

 have separately originated from, and should be regarded as no 

 more than varieties of, A. plicaia and A. victoriana respectively. 

 In the absence of more conclusive evidence than is furnished bj' 

 the specimens available, however, it has seemed to me advisable 

 to regard them as constituting a species distinct. 



Allantophora ciocalyptoides (typical form). 

 (PI. XXX., figs. 6, 7.) 

 Of this, there are four examples, — the three originally recorded 

 by Dendy,* and an additional one in the collection of tlie Aus- 

 tralian Museum Two of these (the last-mentioned and one of 

 the originals) are almost identically similar (PI. xxx., fig. 7), each 

 having the form of a comparatively thin crust which spreads 

 extensively over the surface of a flattened water-worn stone, and 

 from which arise, short, tapering, digitiform processes — in part 

 occurring singly at wide and irregular intervals, and in part dis- 

 posed closely in clusters (usually with some amount of coales- 

 cence). The digitations are from 5 to 15 mm. in length and 

 seldom more than 2 or 3 mm. in stoutness except near their base, 

 and are provided with moderately numerous, filosely acuminate 



* In the original description, four specimens are referred to; but, as 

 alreadj- mentioned, one of them (R.N. 388) is an example of A. rictoriana. 



