1897-98.] Prof. D’Arcy W. Thompson on Marine Faunas. 315 
were only from 3-4 cm. in height,” while “ of the soft parts 
only some very small fragments remained.” In addition to 
these, “ several fragments ” with “ completely macerated skeletons ” 
were obtained in lat. 46° 10' S., long. 48° 27' E. The former 
station is off Marion Island, the latter between Marion Island 
and the Crozets. 
Chonelasma lamella , F. E. S. — This sponge is known from some 
fragments, which, though small, are said to be well preserved, 
dredged in 630 fathoms off the Kermadec Islands, lat. 29° 45' S., 
long. 178° 11' W. ; and also from a macerated specimen got in 550 
fathoms, in lat. 46° 53' S., long. 51°_21' E. The only evidence 
that I can find of a more northern distribution is the statement 
( Cliall . Rep., Hexact., p. 321) that a “skeletal fragment,” dredged 
in lat. 32° 8' 45" H., long. 64° 59' 35" W., from a depth of 1075 
fathoms, “appears to belong to the same species.”"" Ho figures or 
description are given of the structure of this last specimen, which 
appears to be again alluded to on p. 397, where the localities of 
the species are enumerated as Kermadec Islands, 520 fathoms 
(? 630 fathoms, cf. “Summary of Kesults,” p. 612); west of 
Kerguelen Islands (?off the Crozets, cf. “Summary,” p. 457), 550 
fathoms; Bermuda Islands, 1705 fathoms (?1075 fathoms, cf. 
Rep., “ Hexactinellida,” p. 321). It is plain accordingly that our 
knowledge of this species is scanty, and that the fragments which 
are assigned to it, both from the Southern Ocean and from the 
West Indian, were in both cases only conjecturally assigned to 
the same species as the more typical fragment from the neigh- 
bourhood of the Kermadecs. As regards the generic distribution 
of this form, we have well-marked and well-known species from 
Japan, while fragments are assigned to the same genus (Schultze, 
lx., p. 327) from the Gulf of Mexico, the Island of St Thomas, 
and from the coast of Portugal. Such a distribution has various 
parallels among other Hexactinellids. 
In regard to the Monaxonid and Calcareous Sponges, of which 
altogether six European species are recorded by Carter {Pliil. 
Trans., 168, p. 286 et seq.) from the Kerguelen region, I propose 
to attempt no discussion in detail, for it is plain that they were 
studied after methods that have passed into disrepute. They 
seem, in my opinion, to deserve careful re-examination, and in 
