32 Mr. W. A. Haswell on the Australian Amphipoda. 



Amaryllis, represented by a species in Tasmania and another 

 in Port Jackson. It has the coxas of the second pair of gna- 

 thopoda and of the first and second pairs of pereiopoda ex- 

 panded as in Stegocephalus, Pleustes, and allied genera, but 

 differs from all of them in combining the possession of appen- 

 diculate superior antennas with palpigerous mandibles and 

 biramous foliaceons posterior pleopoda. 



The genus Lysianassa is represented by several species in 

 Port Jackson (where it is very abundant in certain situations) 

 and Port Denison. 



Allied to Lysianassa is a new genus {Glycera) represented 

 by a species common to North Australia (Howick group of 

 islands) and Port Jackson. It is characterized by having the 

 four anterior pairs of coxas very deep, as in Lysianassa, 

 Anonyx, and other genera of the subfamily Lysianassides of 

 Spence Bate, but possesses longish slender (appendiculate) 

 superior antennas ; the mandibles are palpigerous ; the maxil- 

 lipedes possess well-developed squamiform processes, as in 

 Lysianassa ; the gnathopoda are slender and filiform ; the 

 posterior pleopoda are biramous ; and the telson is double. 



A species of Ampelisca occurs in Port Jackson and Port 

 Denison, together with two species of Phoxus. A species of 

 (Edicerus and one of Urothoe occur on the sandy beach at 

 Bondi, near Sydney. The genera Pherusa and Atylus are 

 both represented, the latter by several species. Of the genus 

 Leucothoe several species from Tasmania, New South Wales, 

 and Queensland have the gnathopoda formed upon the same 

 type as the European L. articulosa and the American L. 

 grandimana, whilst another approaches more nearly in that 

 respect to L. farina. These species are almost always found 

 in the interior of sponges, or in the pharyngeal and atrial 

 cavities of various ascidians. 



Species of the cosmopolitan genera Meliia, Megamaera, 

 Mosra, and Gammarus occur abundantly — the common species 

 of the first of these, which I have named Melita australis, 

 being a very close ally of the North- African M. anisochir. 



A species of Eusirus, distinguished by the spinous anterior 

 pleonal segments, occurs in Tasmania. 



Probably nearly related to Eusirus and Lduna is a new 

 generic form which I have named Macleayia. It has the 

 superior antennas appendiculate, shorter than the inferior 

 pair ; the mandibles are provided with an appendage ; the 

 maxillipedes are exunguiculate, with the squamiform processes 

 rudimentary ; the gnathopoda are subchelate, the posterior 

 pair being very large ; the posterior pleopoda have one large 

 ramus ; and the telson is small and undivided. 



