MOLLUSCA.— HEDLEY. 
37 
Puncturella analoga Martens. 
Puncturella analogai Martens, Deutsch. Tiefsee Exped., vii., 1903, p. 70, p]. v., fig. 8. 
There is a single shell, 6-5nnn. long, agreeing generally with the figure quoted, which 
was dredged alive adhering to a Brachiopod from 60 fathoms, off the south end of 
Macquarie Island. 
I have not material to discuss its relations with P. falklandica A. Adams,* with the 
southern form of P. noachina Linne,t or with P. spirigera Thiele 
MaRGARELLA MACQTJARIENSIS Sp. nOV. 
(Plate V., figs. 56, 57.) 
Shell depressed-spherical, rather solid, imperforate when adult, polished. Colour 
ash purple. Whorls four and a half, rather rapidly increased, well rounded at periphery, 
slightly descending at the last, parted by impressed sutures. Under the lens the surface, 
smooth to the eye, is seen to be sculptured by dense, fine, hair radials. Aperture oblique, 
semilunate, outer lip simple thin. Base tumid ; in the young, till three whorls old, 
the shell is narrowly perforate, the umbilicus over-arched by a lobe of the columella 
lip, which later becomes appressed to the base. In the adult the basal axis is over¬ 
spread by a thick crescentic callus, slightly tinged with green and excavate medially. 
Height, 8 ; maj. diam., 9 ; min. diam., 7-5mm. 
Twenty specimens were taken, January 19th, 1913, by Mr. H. Hamilton, at Aerial 
Cove, Macquarie Island. He notes that the species occurred sparingly under stones. 
Compared with M. expansa Sowerby, this is smaller, more depressed, more solid, and 
of a paler colour. 
Margarella refulgens Smith. 
Valvatella refulgens Smith, Nat. Antarct. Exped., ii., 1907, p. 11, pi. ii., fig. 7 ; Id., 
Hedley, Brit. Antarct. Exped., ii., 1911, Moll., p. 4. 
Margarella refulgens Thiele, Deutsch. Siidpol. Exped., xiii., 1912, p. 188 ; Id., Smith, 
“ Terra Nova ” Exped., Zool., ii., 1915, p. 64. 
Several, January 20th, 1913, dredged in 15-20 fathoms, Commonwealth Bay, on a 
floor of rock and brown algse ; again numerous specimens, September 4th, 1912, in 25 
fathoms ; five, December 14th, 1913, in 45-50 fathoms; two, December 21st, 1913, 
in 55-60 fathoms ; and four, December 22nd, 1913, from 350-400 fathoms, in Common¬ 
wealth Bay. One, January 27th, 1914, in 120 fathoms, on a floor of granite rock, in 
the Davis Sea, in South Lat. 66° 8' and East Long. 94° 17'. 
* Dali.—Proc. U.S. Nat. Mus., xii., 1889, p. 356. 
f Smith.—Proc. Malac. Soc., v., 1902, p. 165 ; Id., Melvill and Standen, Trans. Roy. Soc. Edinb., xlviii., 1912, p. 344. 
t Thiele.—Deutsch. Siidpol. Exped., xiii., 1912, p. 186, pi. xi., figs. 4-10. 
