986 mh. u. m. kyle ox a bee 1 8 , 



Pig. 7. A oirriferoua pir.ipodium of the right side drawn from behind 



(enlarged ). 

 Fig. 8. An elytriferous parapodium drawn from above f enlarged). 

 Lettering of figs. 7. 8 : — 



etc., acicula. m.d.c, median dorsal respiratory 



br., branchiae. channel. 



ch., nenropodial chjetiv. neph., aephridial papilla. 



el., elytrophore. nr., neuropodium. 



f, notopodial bunch of hair. nrje., nenropodial cirrus. 



f.p.r.. flattened parapodial ridge. nt., notopodium. 



nl.c., base of notopodial cirrus. 



Platb LXII. 



Fig. 9. The part of iig. <», much magnified. 



Fig. 10. Large typical elytron from the middle of the left side. X 2. 



Fig. 11. Neuropodialchajta of Lepidonotusffiganteus, much magnified (camera I, 



Fit;. 12 a. jjr.e., proximal half of a single notopodial hair. 



Fig. 12'». rl.e., distal half of the same. 



Fig. 13. Anterior end of the protruded pharynx, showing the circle of papilla 



i'/), the paired dorsal and ventral teeth (b), supported on the lateral 



cushions (r) of the lining of the pharynx. X 4. 

 Fig. 14. The dorsal pair of teeth, seen in situ, after the retracted pharynx and 



buccal region have been slit open. X 4. 

 <i. the chitinous expanded base d. prepharyngeal papillae. 



of the tooth. r, cushion, between which and the 



b, the claw-like terminal tooth. base is a deep furrow. 



<; secondary calcified junction J\ dorsal groove of pharynx. 



across the dorsal line. g, buccal region. 



3. On a new Genus of Flat-fishes from New Zealand. 

 By H. M. Kyle, M.A., B.Sc v St. Andrews. 1 



[Received November 26, l'JOO.] 



The new genus of Flat-fishes which it is proposed to establish is 

 founded on a single specimen contained in the collection of 

 Prof. D'Arcy W. Thompson, C.B., of the University College. 

 Dundee. It was presented by Prof. Jeffrey Parker of New 

 Zealand, and had been labelled by him lihrnibosolea monopvts. A 

 cursory glance, however, was sufficient to distinguish it from 

 Rhombosolea ; and a more careful examination and comparison 

 with the description of the known and already described forms 

 showed that it was different from them all, and merited a place iu 

 the classification of the Flat-fishes (Heterosomata) as a distinct 

 genus. 



It is somewhat precarious perhaps to found a new genus on a 

 single specimen, but it would be absurd to suppose that this 

 specimen was the only one of its kind. To describe this form at 

 present, also, will lead to its earlier detection and differentiation 

 from the other forms of the TS T ew Zealand fauna. 



It is proposed to call this specimen Apsetta thompsoni, the 

 generic term arising from its affinities, which are not with the 



1 Communicated by G. A. BouLEHGHH, F.R.S., F.Z.S. 



