Okder IMPENNES.] 
[Eam. SPHENISCID^. 
EUDYPTULA UNDINA. 
(LITTLE BLUE PENGUIN.) 
Aptenodytes undina, Gould, Proc. Zool. Soc. 1844, p, 57. 
SphenisGus undina, Gould, B. of Austr. vii. pi. 85 (1848). 
Eudyptula undina, Bonap. C. R. xlii. p. 775 (1856). 
Eudyptila undina. Gray, Hand-1, of B. iii. p. 99 (1871). 
Ad, similis E. minori, sed minor, et suprk dilutius et Isetitis cyanescens. 
Adult. Crown, nape, Lind neck, and all the upper parts bright glossy pale blue, the shafts of the feathers 
black; sides of the head bluish grey; throat, fore neck, and all the underparts pure silvery white; upper 
surface of flippers bright blue, each feather with a lanceolate mark of black down the centre ; along the 
inner edges of flippers a narrow band of white. Irides pale grey with a silvery edge to the pupil. Bill 
blackish brown, paler on the under mandible ; feet yellowish white, with black claws ; the webs and soles 
blackish brown. Total length 14' 5 inches; length of flipper 3; tail 1'25 ; bill, along the ridge 1‘25, along 
the edge of lower mandible 1‘5 ; tarsus "75 ; middle toe and claw 1'75; hind toe and claw ‘4. 
Young. I have obtained newly-fledged specimens from the nest, with the down adhering ; the colours were the 
same as in the adult, the blue on the upper surface being conspicuonsly bright. 
Nestling. Covered with thick short down, sooty brown on the upper and white on the under surface ; irides 
purplish grey. 
Obs. Like Eudyptula minor, this species assumes the full plumage from the nest, the blue on the upper surface 
being very bright. I have a specimen in that stage with remnants of down adhering. 
This Penguin is equally, if not more abundant on our coasts than the preceding one ; and the fore- 
going account is applicable to both species. 
Dr. Finsch refuses to admit any specific distinction. Dr. Coues also, in writing of Gould’s types 
in the Museum at Philadelphia, says : — “ These specimens are slightly smaller than average minor, 
bluer than usual, but not bluer than No. 1338, for example, and with rather weak bills 
I cannot distinguish these specimens even as a variety.” Mr. Gould, however, who originally 
described this bird, observes : — “ By many persons it might be regarded as the young of E. minor ; 
but I invariably found the young of that species, whilst still partially clothed in the downy dress of 
immaturity, to exceed considerably in size all the examples of this species, even when adorned in the 
adult livery, and possessing the hard bill of maturity ; there can be no question, therefore, of the two 
birds being distinct.” 
In support of my own view that this bird is specifically distinct from the preceding one, I have 
already published * figures of the bill in two selected examples, in order to show their relative pro- 
portions. These sketches were from specimens in the Colonial Museum, exhibiting the two extremes 
of size in a somewhat variable series. 
There is a fine mounted group of New-Zealand Penguins in the Canterbury Museum. The case 
* Trans. N.-Z. Inst. vol. ix. pi. xv. 
