50 



•ENDEAVOUE" SCIENTIFIC RESULTS. 



Genus Hvpoplectrodes, (////. 

 HvpoPLECTKODES SEMicixcTA, Cuvier and Valeyiciennes. 

 Half-handed Sea Pcn'li. 

 Gilbertia seniicincta, Boulenger, Brit. Mus. Cat. Fish., 2nfi 

 ed., i., 1895, P- 307- 

 A single specimen was preserved from six miles off Port 

 Stephens, New South Wales, 43 fathoms. 



Genus Axthias, Bloch. 

 Anthias, Boulenger, Brit. Mus. Cat. Fish., -Mid ed., i., 1895,, 

 p. 320. 



A careful examination of fourteen specimens of .4. pulchel- 

 lus, Waite, shows that the differences between this genus and 

 CcEsioperca are very slight. Comparing the definitions of the 

 two, as given by Boulenger {loc. cit., pp. 311 and 320), it 

 appears that the only reliable differences between them are 

 as follows : — 



Scales rough on the border, denticulated ; tubes of the 

 lateral line bifurcate, short. Dorsal with 19-23 rays. Anal 

 with 9-10 rays: — Ccesiopcrca. 



Scales ciliated, smooth. Tubes straight or with an ascend- 

 ing tubule and extending along nearly the entire scales. 

 Dorsal with 14-18 ra}s. Anal with 6-8 rays: — Anthias. 



In .1. puIclieJIus I find the number of fin rays agrees with 

 Anthias, while the characters of the scales are distinctly those 

 of Ccesioperca. In the fourteen specimens the number of fin- 

 rays and scales is as follows: — D. X./16-17; A. iii./8; P. 

 15-16; 1. lat. 41-45. 



My colleague, Mr. E. F. Hallmann, \er\ kindly pre- 

 pared microscopical mounts for me of the scales of Atitliias 

 pleurBtcenia, Bleeker, A. pidchellus, Waite, Ccesioperca yasor,. 

 Rich., and C. lepidoptera, Forster. In the first-named only 

 are they smooth with ciliated edges. Those of the other 

 three ha\ e their borders roughened for varvina distances. 



FIG. 12. 

 within the ciliated edges. In none do I find the tubes of the 

 lateral line bifurcate, as stated by Boulenger, though they 

 extend further across the scales in A. plenrotcenia than in the 

 others. 



