238 Transactions. — Zoology. 



Length 0-12 inch. 



Hab. Two s^Decimens were obtained by the dredge in Otago Harbour. 



EXPLANATION OF PLATES XVIL AND XVIIL 

 Plate XVIL 

 Fig. 1. Anonyx corpulentus x 7 ; a, sup. antenna x 20; b, inf. antenna x 20 ; c, 



1st gnathopod x 20; d, 2nd gnathopod x 20 ; e, 5tli pereiopod x 20 ; 



/, telson and posterior pleopoda x 20. 

 Fig. 2. Phoxus batei, a, head and antennae, seen from above, x 26 ; &, 2nd gnatho- 

 pod x 20 ; c, 3rd pereiopod x 20 ; d, 5th pereiopod x 20 ; e, telson and 



posterior pleopoda x 20. 

 Fig. 3. PolycJieria obtusa x 13 ; a, mandible x 50 ; &, 2nd pereiopod x 20 ; c, 



extremity of 4th pereiopod, showing prehensile fingers, x 75; d, telson and 



posterior i^leopoda x 20. 

 Fig. 4, Moera quadrimanus, a, hand of second gnathopod x 13, taken from dredged 



specimens ; b, same taken from littoral specimen. 



Plate XVIIL 

 Fig. 1. Leucothoe traillii, a, cephalon and antennaa x 20; b, 1st gnathopod x 20; 



c, 2nd gnathopod x 20 ; d, telson x 20. 



Fig. 2. Anonyx exiguus, a, mandibles X 75 ; b, 1st gnathopod x 44 ; c, 2nd 

 gnathopod x 44 ; d, 5tli pereiopod x 44 ; e, telson and posterior pleo- 

 poda X 75. 



Fig. 3. Moera fetriei X 5 ; a, 1st gnathopod x 20 ; 6, 2nd gnathopod x 13, with 

 dactylos separate ; c, telson and posterior pair of pleopoda x 20. 



Fig. 4. Iphigenia tyjnca X 13: a, suiJerior autenuaa ; b, inf. ant.; c, maxillipeds; 



d, 1st gnathopod ; e, dactylos of same ; /, penult, pleopoda ; g, telson and 

 last pair of pleopoda ; — all these parts x 44, except e x 75. 



Akt. XXXI. — On the Notornis. 

 By Walter L. Buller, C.M.G., Sc.D., F.E.S. 

 IRead before the JFellington Philosophical Society, Srd September, 1881.] 

 The capture of a specimen of the rare Notornis mantelli in the South 

 Island, is an event of sufficient importance to warrant a special memoir in 

 our " Transactions," and I have therefore much pleasure, at the request of 

 our president, in bringing before you this evening all the information I 

 have been able to collect on the subject. 



I may here mention — and I do so with regret — that the specimen which 

 I am about to describe is no longer in the colony, having been despatched 

 by the Waitangi about three weeks ago for sale in England. 



