1. 



Heteropora from the Semaphore, South Australia, under the 

 appellation of II cervicomis, considering it to be identical with 

 the JPlcthopora cervicomis, D'Orbigny, from the cretaceous 

 rocks of France ; he also mentions a second species from the 

 seas of Japan. Till the appearance of this interesting com- 

 munication no recent species belonging to the genus seems to 

 have been published. A third species has been described by 

 Mr. Busk (Journ. Linnean Soc, London, vol. xiv., p. 724, 1879 ; 

 pi. xv.), which he had received from New Zealand. The occur- 

 rence, therefore, of the above three species belonging to a genus 

 of which we had previously no species more recent than the 

 English Crag, and extending back to the Jurassic period, is of 

 particular interest. 



Heteropora cervicomis is associated on our coast with a very 

 common Cellepora which has a similar mode of growth ; so 

 much that a microscopical investigation is necessary for their 

 separation. Mr. Waters cannot identify the Cellepora with 

 any described species, and distinguished it as C. repleta, a figure 

 of which is given ; but it is the C. tubigera, Hutton (Proc. Roy. 

 Soc, Tasmania, p. 24 ; 1878.) 



Rev. T. Hincks' " Contributions towards a General History 

 of the Marine Polyzoa" (Annals and Mag. Nat. Hist. ; July, 

 1880), give figures and diagnoses of seven species of Mem- 

 branipora from the Australian Sea ; five are new to science, 

 and one — M. delicatula, Busk (JBiflustra sp.) — is common to 

 Australia and Florida, and is fossil in the English Crag. No 

 localities are given for the Australian species. 



" The Journal of the Microscopical Soc. of Victoria," vol. i., 

 Nos. 1-3 , contains several papers on Polyzoa. 



Mr. J. R. T. G-oldstein furnishes diagnoses of two new 

 species — Serialaria Wbodsii and Catenicella ponderosa — obtained 

 at Portland. The same author's notes on living polyzoa supply 

 much new information respecting the polypes of several species. 



Mr. Chas. M. Maplestone describes as new JBicellaria 

 annulata and Catenicella pulchella. The great peculiarity of the 

 first species is the spindle-shaped structure upon which the 

 cells grow ; and from the ringed appearance of the individuals 

 the specific designation is derived. In fact, the author thinks 

 that a new genus is requisite for its reception. 



Mr. J. Brambridge Wilson has instituted the genus Cateni- 

 cellopsis, separated from Catenicella by the mode of branching. 

 It comprises two species, here described as new under the 

 names C. pnsilla and C delicatula. The same author announces 

 the occurrence of fossil Catenicellse in the Miocene Eocks at 

 Bird Rock, near G-eelong. At least twenty distinct species 

 have already been observed. Their illustration and complete 



