BY T. WHITELEGGE. 341 



I have examined several fossil examples of this species which 

 appear to agree with Busk's description and figures, and which 

 may be identical with the form figured as L. cancellata, Busk, by 

 Mr. "Waters in his paper on Fossil Bryozoa from Bairnsdale, but, 

 both in this species and in the next, the identity can only be 

 definitely settled by comparison with the types. 



Loc. — (living) Philippine Islands; (fossil) Muddy Creek, Victoria. 



(2.) B. Philippinensis, Busk. 



Lunulites Philippinensis, Busk, op. cit. Part II, p. 101, pi. 

 CXIII, figs. 1-2-3. 



Zoarium depressed, conical, plane or convex beneath, usually 

 about I" of an inch in diameter ; zooecial orifice elongate, rounded 

 above, and with a wide rounded sinus below ; operculum oval ; 

 peristomial orifice ovate, the margin produced above at the sides 

 then suddenly depressed below, with a subcircular pore on the 

 upper border ; an avicularium with a subcircular mandible on each 

 side and sometimes one in front below the mouth, a number of 

 .similar aviculai'ia on the under surface of the zoarium, some on 

 rounded elevations and others in circular depressions. Ocecia 

 external, globose, smooth, with a faint fimbriated stigma in front. 



Loc. — Poi't Jackson. 



This species is frequently to be met with in some parts of Port 

 Jackson, and I have examined a fair number of specimens. The 

 surface of the zoarium is covered with a thin yellowish epitheca ; 

 and the semilunar slits which indicate the growth of new zocecia 

 are to be seen in all stages of development, especially in the young. 

 It is by a careful examination of this species that I have been 

 enabled to work out the structure of the others. The zoarium, 

 when seen in longitudinal section shows the concave side as having 

 a cancellated layer of varying thickness, from which the zocecia 

 take their origin ; each zocecium is narrowed at the base and very 

 slightly bent inwards ; its direction from this point is outwards, 

 with a gentle curve upwards, at nearly right angles to the cancellate 

 layer. 



