14 
Proceedings of the Royal Society of Edinburgh. [Sess. 
30-60 fathoms, August 1908. M‘Murdo Sound, 25-50 fathoms, 6th July 
1908. Specimens labelled only “ 4 July 1908 ” (? M‘Murdo Sound). 
Lampra parvula, Hickson and Gravely. 
Lampra parvula, Hickson and Gravely, 1907, p. 17, pi. iii. figs. 15, 16; 
pi. iv. fig. 35. 
Examples of this species, the striking brick-red colour of which is easily 
^recognisable in the collections, occur at several stations. They are poorly 
preserved, however, but the majority bear at least indications of well- 
developed gonophores. The largest specimen reaches a length of 28 mm., 
and the largest head is about 3*5 mm. in diameter. 
Localities. — M'Murdo Sound, 25 fathoms and 25-50 fathoms, 6th July 
1908. Cape Royds, 10-25 fathoms, July 1908 ; 30-60 fathoms, 15th August 
1908; 50-80 fathoms, 20th August 1908. Specimens labelled only “4 July 
1908 ” (? M‘Murdo Sound). 
This species has so far been found only in the neighbourhood of Ross Island, 
Victoria Land. 
CALYPTOBLASTEA. 
Family Halecim:. 
Halecium tenellum , Hincks. 
Halecium tenellum, Hincks, 1861, p. 252, pi. vi. figs. 1-4; and 1868, p. 226, 
pi. xlv. fig. 1. Idem, Jaderholm, 1909, p. 55, pi. iv. fig. 12; and others. 
Characteristic examples of this cosmopolitan species occur on several 
hosts from several areas. They differ from the examples commonly met 
with only in their lack of all wrinkling in the stems, and in the regularity 
with which a branch arises from a definite position beneath a hydrotheca. 
Such a branch is frequently balanced by another branch placed a very little 
lower on the stem and on the opposite side — an appearance of false dicho- 
tomy being approximated, as in the specimen figured by Jaderholm, from 
Bohuslan (1909, pi. iv. fig. 12). It is also worthy of note that the hydro- 
thecse themselves are borne on short terminal internodes, separated by a 
distinct constriction from the stem or branch proper. 
A few broadly ovate gonangia are present. 
Dimensions . — 
Stolon, diameter . . . . 0T2 mm. 
Stem, diameter .... 0‘08-0T0 mm. 
Hydrotheca, depth .... 0 - 045 mm. 
diameter at mouth . 0T4-0T5 mm. 
Gonangium, length including stalk . 1*0 1-1 '08 mm. 
greatest diameter . 0’52-0 - 60 mm. 
