274 = MR. GOSSE ON PEACHIA HASTATA. 
unicolorous ; as is also the body generally, though this is sometimes varied by lines or 
spots of another colour, which are by no means constant; a line of different hue more 
commonly encircles the base. The tentacles are moderately numerous, of medium thick- 
ness, tapering to a point. 
These three genera may be therefore defined thus :— | 
1. SAGARTIA, Gosse.— Actinie basi adhærentes ; tentaculis conicis, facile retractilibus ; 
spherulis marginalibus nullis; corpus everrucosum, filamenta capsulifera e poris 
emittens; filis urticantibus brevibus, pilorum fasciculo densè armatis. | 
British species, viduata (=anguicoma, Price), Troglodytes, Aurora, candida, rosea, 
nivea, venusta, parasitica, Bellis, Dianthus. Probably also aurantiaca and pulcherrima 
of Professor Jordan. The following exotic species, figured by Dana in the Zoophytes of 
the American Exploring Expedition, seem to be referable to this genus :— Primula, the 
beautiful decorata, and Fuegensis, both allied to our Bellis; and Achates, reticulata, and 
Paumotensis (perhaps the most magnificent of the whole tribe), which are evidently allied 
to Dianthus. i 
2. BUNODES, Gosse.—Actinie sphærulis marginalibus nullis. Corpus verrucosum; cute 
coriaceá, filamentis missilibus nullis ; filis urticantibus longis simplicibus; tentaculis — 
plerumque crassis, conicis, obtusis. : 
British species, gemmacea, thallia, clavata, crassicornis, Monile (probably the young of 
crassicornis) ?, Chrysoplenium?, alba?, miniata? Of exotic species, Diadema, pluvia, 
Gemma, Artemisia, of Dana’s Zoophytes, probably come here. 
3. ACTINIA, Linn.—Spherule capsulifere ad disci marginem seriatee. Corpus everruco- 
sum, poris filamentisque missilibus destitutum ; cute levi. i 
British species, Mesembryanthemum, margaritifera, Ohiococca. Exotic species, Tabella 
and graminea of Dana. 
The following British Species are of doubtful place ;—coccinea, intestinalis, biserialis, 
vermicularis. The very curious biserialis of the late lamented Professor Forbes has a close 
parallel in the Rhodora of Dana; and these may perhaps form another genus, when more 
is known about them.  Zntestinalis and vermicularis, both from the Shetland seas, show, 
in their slender lengthened form, an approach to the free condition of Peachia, &c. The 
latter of these is a deep-water species (eighty fathoms); and, as Professor Forbes 
observes, looked when unattached “ more like a planarian worm than an Actinia.” 
The following table exhibits one manner in which the British noncoralligenous 
Actiniade may be artificially distributed:—  — - iy 
Tentacles gathered into gum Dc aO LES Ga RE dE pe us AN Lucernaria 
( Tentacles scarcely es base entie ti x Logo Lacs Putat: 
retractile. Adhering base annular oti as. dag. Jp laa 
Adherent Be ERSTER, a epilatori accuse is em Mis j 
nuous. Wenfarles di entacles truncate..... MM apnea. 
. retractile. . emitting filaments ............... Sagartia 
Tentacles conical . warted...... Bunodes 
` L zus mmm hac ... Aetinia. 
