Tertiary Polyzoa of Victoria. 3 



Locality. — Mornington. (T. S. Hall). 



A single specimen. This like C. nutans and C. conica has the 

 proximal zocecium inclined to the axial line, but not to so great 

 an extent as in those species. The globular shape and the very 

 deep crescentic depressions are characteristic. 



Catenicella personata, n. sp. (PL I., Fig. 5). 



Ocecium irregular in shape, somewhat globose ; aperture very 

 wide, oblong, with rounded sides ; margin very wide, thick and 

 partially overhanging in front ; upper part very rugose, with 

 irregular perfoi*ations over the middle portion. Proximal 

 zocecium subtriangular with five fenestrte. 



Z^Crt///y.— Mornington. (T. S. Hall). 



A single specimen. It is possibly imperfect, but is quite 

 distinct from any other species. It, like the three previously 

 described species, has the ocecium inclined to the zocecium, and 

 the slide had to be tilted to gain a view of the fenestrse. 



Among the CateniceUcB descidbed and figured by Dr. Mac- 

 Gillivray in his Monograph, are C. circumcinda (Waters), C. expansa 

 (McG.), C. tenuis (McG.), C. nianii/iata (McG.), and C. pulchella 

 (mihi), which, with four new species described in this paper, form 

 a distinct group characterised by the fenestras being round or 

 oval, distinctly separated ; not pyriform and aggregated as in the 

 other CatenicelicE.^ All are found fossil in our Tertiary deposits, 

 the only one which has also been found living is C. pulchella 

 which was described by me in the Journal of the Microscopical 

 Society of Victoria in May, 1880. It was afterwards described 

 by Dr. MacGillivray to this Society in November, 1880, as C. 

 concinna, which he then stated might be my C. pulchella, but 

 that I had described the ornamentation as " I'ound bosses." 

 Afterwards he recognised my species, and Busk in the " Chall- 

 enger " Reports, describes it on page 13, and figures it (PL I., 

 Fig. 4) showing the so-called fenestra as bosses, as I had 

 described them ; and he says, " at first sight scarcely referable to 

 either the fenestrate or vitiate section. But it appears properly to 

 belong to the latter," for which section Dr. MacGillivray 



1 In speaking of Catenicelhe I allude to the genus as defined by Dr. MacGillivray, not 

 the Catenicellw of Busk. 



