520 
THE VOYAGE OF H.M.S. CHALLENGER. 
Terquem figures a similar form as Frondicularia sacculus (Foram. du Lias, 6'® m ' m4m., 
p. 482, pi. xix. fig. 20, a.b.) ; and the Frondicularia linearis of Philippi (Beitr. zur 
Kennt. d. Tert.-Verstein., p. 5, pi. i. fig. 32) is a Flabelline variety, with analogous 
general contour. 
Such organisms are very rare in the living condition, and the present species has only 
been obtained at two Challenger Stations, namely, — off the Ki Islands, 129 fathoms, and 
off Raine Island, 155 fathoms. Mr. F. W. Millett has the same form from the coast of the 
Korea, 40 fathoms. 
Frondicularia archiaciana, d’Orbigny (PI. CXIV. fig. 12). 
Frondicularia archiaciana, d’Orbigny, 1840, Mem. Soc. geol. France, vol. iv. p. 20, pi. i. 
figs. 34-36. 
,, „ Reuss, 1845, Verstein. bohm. Kreid., pt. 1, p. 31, pi. xiii. fig. 39, a.b. 
,, „ Williamson, 1858, Rec. For. Gt. Br., p. 23, pi. ii. fig. 51. 
tenuis, Reuss, 1874, Das Elbthalgebirge in Sacbsen, 2 Th., p. 94, pL xxi. fig. 3. 
The beautiful elongate Frondicularia (PI. CXIV. fig. 12) belongs, I think, to this 
species. The contour of the shell is almost precisely that of d’Orbigny’s drawing, though 
the rudimentary costae on the small, inflated, primordial segment are wanting. Very 
similar forms are described by Reuss, under the name Frondicularia canaliculata (Sitz. 
d. k. Ak. Wiss. Wien, vol. xl. p. 194, pi. vi. fig. 1), and by Karrer, as Frondicularia 
cwncena (Jahrb. d. k. geol. Reichsanst., 1870, p. 172, pi. x. fig. 10), but both are some- 
what broader near the distal end, and more tapering in outline. 
The recent specimen was obtained from the rich dredging off Raine Island, Torres 
Strait, 155 fathoms. 
Frondicularia archiaciana is a common Cretaceous species. A slightly broken 
specimen, found in shore-sand from Sandwich, Kent, is figured by Williamson amongst 
recent forms ; but there can be little doubt that the original was a fossil, washed from 
the chalk cliffs of the neighbouring coast-line. 
Frondicularia compta, H. B. Brady (PI. LXV. fig. 19). 
Frondicularia compta, Brady, 1879, Quart. Journ. Micr. Sci., vol. xix., N. S., p. 57, pi. viii. 
fig. 6. 
Test long, complanate, spathulate ; truncate or emarginate at the base, obtusely 
angular at the distal end ; lateral edges square, more or less lobulate. Early segments 
larger than those subsequently formed, sutural lines limbate ; surface otherwise smooth. 
Length, -^th inch (1 mm.). 
A very beautiful little shell, with just sufficient irregularity of structure to render it 
difficult of description in brief or definite terms, and equally difficult to reconcile with 
