1877.] MR. D. G. ELLIOT ON THE IBIDINiE. 477 



very small, those of the vomer limited to the anterior extremity of 

 Uie bone, a band of villiform teeth along the middle of the hyoid 

 Fraeoperculum with the angle much rounded, and without a distinct 

 lower limb ; suboperculum more than twice as long as deep. The 

 gill-cover shows scarcely a trace of the radiating and concentric striae 

 by which Salmo mtidus is characterized. Pectoral shorter than or 

 equal in length to, the head without snout ; and at least one half or 

 more than one half of the distance of its root from the ventral. 

 Ventral fins terminating at a considerable distance from the vent. D 

 13 ; the largest ray scarcely longer than the distance of the eye from 

 the end of the operculum. A. U. Caudal deeply excised, its middle 

 rays not quite half as long as the outer ones. Scales minute, Bran- 

 chiostegals 11. 



Pyloric appendages 42. Vertebrce 65. 



Upper parts light greenish olive, passing into the silvery colora- 

 tion of the sides. Lower part of a deep reddish-pink colour. Sides 

 with very small red spots. Dorsal and upper part of the caudal of 

 the colour of the back. Paired fins and anal and lower part of caudal 

 deep red, with yellowish white margins. 



Several specimens were obtained in a freshwater lake near to the 

 winter-quarters of the 'Discovery,' in a depth of from 10-15 

 fathoms. 



This is a small species, the largest example measuring 10 inches, 

 all the others, males and females, being only 8 inches long Yet the 

 sexual organs were fully developed, and the ova ready for exclusion, 



J3y associating the name of Sir George Nares with one of the 

 novelties brought home by the Arctic Expedition, I pay only a small 

 tribute of the esteem in which all zoologists hold the leader of the 

 Challenger and Arctic Expeditions. 



6. Review of the IbidiruB, or Subfamily of the Ibises. By 

 D. G. Elliot, F.R.S.E., F.L.S., &c. &c. 



[Eeceived May 22, 1877.] 



(Plate LI,) 



The materials by means of which the present paper has been 

 written are contamed in the Museum of Paris and in the collections 

 ot Messrs. Salvin and Godman, and Captain G. E. Shelley. 



The collection of the Paris Museum is very rich in these bird's 

 and contams several of the types of older writers, as Cuvier &c. • 

 and T have to acknowledge my indebtedness to Prof. A. Milne- 

 Edwards and M. Oustalet for the facility afforded me in makin<^ 

 my investigations. In the following paper I have given the litera" 

 ture ot the subfamily, classification, genera, and geographical dis- 

 tribution, together with the synonymy for each species as I have 

 been able to determine it. 



