322 

 It may be thus described : — 



LlCHENELLA. 



Coral frondose, erect, branched, hard, calcareous, and brittle; the 

 stems and branches are convex on one side, and flat or rather con- 

 cave on the other ; the stem is broad and flat ; the branches are nar- 

 row, with a more or less expanded thinner margin, which is dilated 

 into broad foliaceous expansions at the tip, which are sometimes pro- 

 liferous, giving out at the top a thin branch bearing an expanded 

 tip. 



The concave surface of the stem and branches are marked with 

 the remains of squarish cells. The expanded ends of the branches 

 are sometimes smooth on both sides ; but generally they are marked 

 externally with longitudinal grooves, and on the upper side fur- 

 nished with longitudinal series of thin, rather calcareous, cells, which 

 are each furnished with a regularly circumscribed roundish mouth 

 closed by a thin membrane marked with a central longitudinal de- 

 pression. The smooth surface of the coral under the microscope 

 is marked with closed transverse punctated undulated cross lines. 



This coral has much more the appearance of a Lichen than of a 

 Flustra. 



I. LlCHENELLA BrENTII. B.M. 



Hab. W. Australia (F. Brent, Esq., 1850). 



The coraloid is so very like the calcareous Alga named Masto- 

 phora Lamourouxii by Descaine, from the same locality, that I am in 

 doubt if it should be regarded as distinct from it. It differs from 

 the usual specimens of that Alga in the leaf-like expansions being 

 covered with cells on the upper surface, and longitudinally grooved on 

 the under surface, the grooves forming the ridge between the cells on 

 the upper side, while in the Alga both sides of the leafy expansions 

 are smooth like Pavonia ; but I must at the same time own that there 

 are one or two of the expansions at the top of one or two of the 

 branches that are smooth like the Alga. 



Can it be a specimen of Mastophora Lamourouxii in which the 

 form of the leaves is changed by a parasitical coral, which causes 

 the leaves to be longitudinally radiately grooved ? 



9. A Monograph of the Genus Kerivoula. 

 By Robert F. Tomes. 



(Mammalia, PI. LXVI.) 



The following monograph is one of a series which I have prepared, 

 having for their object the definition of groups or genera rather than 

 the description of the species of which they are composed. This has 

 been done with a view to render less difficult the determination of 

 the species, which difficulty is chiefly felt from the indiscriminate 

 manner in which they are thrown together by some zoologists ; the 



