166 Rey. T. Hincks’s Contributions towards a 
and bent at the extremity; they are almost universally 
raised. A shallow arched groove crosses the operculum: a 
short distance above the sinus, and is a rather conspicuous 
character. 
The only specimen which. | have examined may probably 
have been Hemescharine in habit, as the dorsal surface of the 
crust is overgrown with other Polyzoa. 
Loc. Mount Gambier (Waters); off Port Phillip Heads 
(Mr. J. B. Wilson). 
Schizoporella latisinuata, n. sp. (Pl. VIT. fig. 5.) 
Zoecia quincuncial, hexagonal, bordered by conspicuous 
raised lines, usually terminating above on each side of tlie 
orifice in a nodulous projection; front surface dense, flattish 
(sutures very shallow), thickly punctured, overspread with a 
shining membranous epitheca ; orifice arched above, a very 
wide sinus occupying about tivo thirds of the lower margin, 
straight below, the opening not at all contracted; peristome 
elevated and somewhat thickened round the top and sides, 
broad and flattened out below. Aviculartanone. Occium (?). 
Zoartum forming a glossy patch of a brownish colour. 
Loc. Off Port Phillip Heads (Mr. J. B. Wilson). 
The form of the sinus in this species is remarkable ; it is 
neither rounded below nor contracted at the opening. Its 
lower boundary-line is straight ; and it is of about the same 
width throughout, occupying a large proportion of the inferior 
margin of the orifice. 
Family Escharide (part.), Smitt. 
LeEpRALIA, Johnston (part.). 
Lepralia striatula,n. sp. (PI. VIII. fig. 1.) 
Zoecia ovate, quincuncial, rising considerably towards the 
centre ; surface smooth, areolated round the margin, and tra- 
versed by radiating grooves, which pass from the areole 
upwards; orifice horseshoe-shaped, arched above, straight 
below, contracted by two opposite denticles‘a short distance 
above the lower margin; about as broad as high ; peristome 
raised, carrying four spines above; on each side of the orifice 
(or on one side only) near the top asmall aviculartum, raised, 
with an elongate subspatulate mandible directed downwards ; 
immediately under the inferior margin a swelling, which is 
carried up into a blunt point, and bears on its inner aspect a 
rounded aviculartum. Occium rounded above, broad (sub- 
