2 Mr. C. Cliilton on a new Species of 



and of a peculiar shape. As I have an abundance of speci- 

 mens, I am able to describe the species in greater detail than 

 lias bern done for some of the others, and also to give pretty 

 fully the peculiar characters of each sex. 



Most ot my specimens are from Port Chalmers in Otago 

 Harbour. 1'hey were taken during low tide on the surface 

 of stones and boulders under a mass of decaying Bolteni'as 

 that had been washed up on the beach. They were found in 

 great numbers and of all sizes, many of the females bearing 

 eggs or young. I have not taken them in the same locality 

 either before or since, although I have several times hunted 

 over the same spot. Possibly some of them had been washed 

 up with the BoUenia/i and had afterwards increased on the 

 beach, though, if so, they must have increased very rapidly, 

 as the Bolteni'as had evidently not been there for more than 

 a few days. The specimens of the Munna were so numerous 

 on all the stones near that it scarcely seems possible that they 

 could all have been washed up with the Boltenias. They 

 walked about on the stones somewhat slowly but with perfect 

 ease, and seemed quite at home out of the water. The 

 excessively long hind legs and the very long antenna", which 

 they carried bent back over the body, gave them a very 

 spider-like appearance. 



I have since taken a single specimen on sea-weed in a 

 rock-pool in Port Chalmers, and another from a rock-pool at 

 Brighton, on the east coast of Otago. 



Ihe new species now to be described agrees closely with 

 the characters of the genus as they are given by the various 

 authors. According to Beddard the affinities of Munna are 

 with Pleurogonium and its inimediate allies, though it also 

 approaches Jcira, Janira., &c. in having biunguiculate thoracic 

 appendages *. This affinity with the latter genera is fully 

 confirmed by an examination of the mouth-parts and pleopoda 

 of the present species, as a comparison of them with those of 

 lanthe speciosa as described by Bovallius f shows that they 

 closely conform to the Asellidan type. Bovallius, however, 

 does not include Munyia in his " Notes on the Family 

 Asellidai" t 



1 shall first give a short specific diagnosis of the species, 

 and afterwards describe some of its parts in greater detail. 



Munna neozelam'ca, sp. n. (Plates I. & II. figs. 1-1 o.) 

 Male. — Body narrow-elliptical, length about two and a half 



• Report on the ' Challenger ' Isopoda, part ii. p. 24. 



+ Kiliang till K. Svenska Vet.-.Vkad. Handlingnr. Band 0, no. 4. 



X L, c. Band 11. no. 15. 



