8 Records of the Indian Museum. [VORew,, 
The colonies described by Miss Thornely (1904, p. 113) as young 
specimens of Campanularia juncea seem to me, as to Dr. Billard, 
indistinguishable from this species. 
Locatity : Andaman Islands, 1899 ; 60 fathoms. 
Distribution.—Thyroscyphus vitiensis is an Indo-Pacific species, 
recorded from the Malay Archipelago (Markt.-Turn., 1890), from 
various localities in the neighbourhood of Madagascar (Billard, 
1907 (2)), from Ceylon (Thornely, 1904), and from the Andamans 
(present record). 
Family LAFOEIDA. 
Lafoéa gracillima (Alder). 
Alder, J., 1857, p. 39, pl. vi, figs. 5,6; as Campanularia gracitlima. 
Allman, J.G., 1888, p. 34, pl. xvi, figs. 2, 2a ; as Lafoéa fruticosa. 
Bonnevie, C., 1899, p. 64, 65, pl. v, fig. 2a. 
Three small colonies were found growing on the spine of a Cidarid 
Sea-Urchin. The colonies are less complex and less bushy than are 
normal specimens, and the largest is only 15mm. high, without a 
single branch ; but it was not to be expected that colonies placed 
on so movable a foundation should attain typical robustness of 
development. The compound stem is of the rhizocaulom type, 
and the structure of a hydrotheca is typical, a solitary twist separat- 
ing it from the stem, while the upper surface is strongly convex and 
the lower, although it is considerably straighter than in British 
specimens, also tends to curve parallel to the upper profile. These 
characters make certain the identity of the specimens with L. gracil- 
lima, notwithstanding that the dimensions of the hydrothece are 
much greater, and the minute structure as a whole is more robust, 
than in typical examples of that species. In those respects the 
Indian examples approach a variety, benthophila, collected by the 
Scottish National Antarctic Expedition, south of the South Orkneys, 
at a depth of 1,775 fathoms (Ritchie, 1909 (1), p. 76) ; and since the 
present examples also have been dredged from deep water it may 
be that the unusual robustness in minute structure is correlated 
with the unusual depth at which the specimens existed. 
For comparison the sizes of var. benthophila and of a typical 
form are given alongside those of the Indian specimens :— 
; | : | North Sea 
Indian Museum Antarctic var.) ~ typical 
speci alee 5 
specimen, =| benthophila. |" specimen.? 
ee ea eee —— 
Hydrotheca, length including | 
hydranthophore He .. | 0°87—O'95mm. | 0°87—1'OIMmM, | 0°57—O'76mm. 
Hydrotheca, diameter at mouth | 0-20—0'24 ,, | o0:21—0o'25 ,, | OT) 
Diameter of a single tube of | 
stem .. Ae at eal Onin was OulOmen OLTONss 
| 
eat eI a ieee hea OARY ee ig | pal S25 eae nee ee UE Re es 
1 Mentioned in the table in the Supplementary Report on the Scotia Hydvotds 
as a “‘Coat’s Land specimen.” The locality, as shown by the bearings, is con- 
siderably nearer to the South Orkneys than to Coat’s Land. 
2 Specimen from lat. 58° 34’ N., long. 0° 47’ E., in my collection. 
