100 A MONOGKAl'II OF THE TEUTIAllY I'OLYZOA OF VICTOKIA. 



species. The zoa'ciu are lari;e, elongalcxl, convex, granular and porous; the 

 thyrostonio is lari>-e, Avide, arched above, contracted heloAV ; peristouK; (hickoned on 

 the si(K's and below, and raised in the centric into a Ihieis pointed mncro, on one 

 side of wiiieh is a large avicularium. 



M. 



6. M. tiKxii'dhoolci/ni.s, n.sp. 1^1. XIIL., lii;-. 0. 



Zoariuni enerustiny. Zocecia irreg'ularly arranged, ovate, distiuet, prominent, 

 especially above ; thyrostome large, arched above, low^er lip straight and Avithout a 

 siuus, with growth projecting forwards so as to form a broad rounded mncro ; 0-8 

 spines ou the upper lip ; a vibracular pore on an elevation on one or both sides of 

 the thyrostome. 



M. 



I am doubtful where to refer this species. The vibraculum is similar to that 

 of MasfigopJioj-a, but there is no sinus. 



7. 31. apiculala, n.s)). PI. XIII., fig. 5. 



Zoarium encrusting. Zcxecia elongated, distinct convex, surface with small 

 pores ; thyrostome rounded above, slightly holloAved l)eIow Avitli a sliarp mucro 

 from immediately below the. lower lip, projecting upwards and forwards and Avith 

 an avieularium on one side;. OcEcia large, rounded, prominent. 



Ji. 



Allied to M. poi'osu, llincks. 



Bracebridgia, 3IcG. 



Zoarium bilaminate, erect. Thyrostome sul)eireuhir, straighter below, with an 

 internal denticle; peristome thickened, smooth or with a small apienlatc muc.'o; 

 rre(iuently in the Fossils, but rarely in recent specimens, a triangular avicularium 

 immediately below the lower lip; lateral avicularia on the free edges oT the 

 zoarivun. 



1. 3- cuteudata, Waters, sp. PI. XIII., iigs. 10, 11. 



Furellu emeitdata, Waters, Q.J.G.S., 1881, \). 330 ; Maci-uiicUd puj-ij'oniiis. 

 Husk, C.P., Pt. I., 155; Braccbrldciia piirifoiniiis, McG., P.Z.V., 158. 



Zoarium forming branching lobes. Zotecia expanded above, narrowed below, 

 a row of pores in a furrow down (;ach side and occcisionally others on the i'ront ; 

 a tumid band embracing the upper part of the thyrostome, the two sides uniting 

 below the lower lip and continmug downwards as a central elevation; thyrostome 



