28 



Lincoln, and is 3 \ to 4 inches in length. This paper gives a list of the- 

 known species and descriptions of new ones. Thirteen species out of a 

 total of 146 inhabit the seas of Australia and New Zealand. The chief 

 works referred to for Australasian aphroditacea are — Kinberg, " Ofver- 

 sigt af Kongl. Vetenkaps — Akademiens Forhandlinger " (1855), and 

 " Fregatten Eugenies Resa ;" and Schmarda, " Neue Wirhellose Thiere." 



Baird. — "Contributions towards a Monograph of the Ampbinornacea," 

 op. cit., vol. x., 3 plates, 1868. A list of the known species is given, 

 and eight Australasian species are recorded, four of which are described 

 as new. 



Baird, " Remarks on several genera of Annelides belonging to the 

 group Eunicea," op. cit., vol. x. (1869). The animals of this group are 

 the marine worms, so remarkable for their great length. Five Australian 

 species are mentioned, three of which are described for the first time. 



Baird, op. cit., vol. xi (1873), describes some new species of Anne- 

 lida and Gephyrea, chiefly from Patagonia and New Zealand. 



Quoy and Gaimard make known two species of Tui'bellarian worms, 



Class Entozoa. — Mr. G. Krefft has written an octavo work on 

 " Australian Entozoa," which contains a list of all the intestinal worms 

 observed in Australia, and descriptions of new species, illustrated by 

 three plates. 



Class Echinodermata. — Order Echinoidea. — Our knowledge 

 of the sea urchins of Australia is embodied in a paper by the Rev. J. E. 

 Tenison Woods, entitled " The Echini of Australia" — Proc. Lin. Soc. of 

 N.S.W., 1877. The author, at the request of Mr. Macleay, undertook to. 

 describe the Echini collected by him in the Chevert Expedition, and took 

 the opportunity of collocating isolated observations on the distribution of 

 this group of marine animals in the Australian seas, except the western 

 portions. His list contains 56 species, three of which are new to science. 

 He divides Australia into three marine provinces, the north-east, the east, 

 and the southern. Respecting the southern, which concerns us most,. 

 he writes that it has a peculiar fauna which possesses what are called the 

 truly Australian genera, such as Amblypneustes, Holopneustes, Micro- 

 cyphus, and Linthia; and further remarks — "I cannot find much con- 

 nection between our tertiary fossil fauna and what we see in the present 

 Australian seas." Three species are common to both, while not only are 

 Australian genera remarkably absent, but even a whole sub-order — the 

 Desmostichia is scarcely represented at all in our fossil formations. In 

 fact, the separation between our tertiary and recent Echini is almost 



