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67
Ocellærpladen er næsten kubisk og har en liden Fure
paa Underfladen.
I den inderste, næsten spidse Vinkel af
Interbrachial-rumraet iagttages Odontophoren, Tab. XI, Fig. 6, d, der
har en aflang Figur med to smaa Apophyser, en paa
hver Side.
Tænderne ere lange og slutte ganske Munden, Tab.
XI, Fig. 6, c.
Parven.
Ryggen teglstensrød, Bugen hvid. Madreporpladen
og Analaabningen gul.
Pindested.
Station 200, et stort og et lidet Exemplar. 303, et
lidet Exempl. 359, et meget lidet Expl.
Slægtskarakter.
Legemet konvex, pentagonalt. Armene korte, robuste.
Ryghuden uden Skelet, men overalt besat med fine,
isolerede Kalkpigge; imellem disse Tentakelporer. Rudimentære
dorsale Randplader. Ventrale Randplader forsynede med
Pigge. Bugfladens Interbrachialrum har smaa Kalkplader,
stillede i Bueform og bærende en eller flere Pigge. Anus
central. To Rækker Fødder uden Spikler. Ingen
Pedicellarier.
Artskarakter.
Legemet tykt, konvex, saavel paa Ryg som Bug.
Den lille Radius forholder sig til den store som 1 : l3/8.
Furepapillerne i 3 Rækker, af hvilke de i den inderste ere
de længste. De ventrale Randplader forsynede med 3 Pigge.
I Interbrachialrummet 3 bueformede Rækker Pigge;
imellem Rækkerne enkeltstaaende Pigge. Ryggen teglstensrød;
Bugen smuk hvid. Analaabning og Madreporplade gule.
Poraniomorpha rosea, n. g. et sp.
Tab. X, Fig. 8—14.
1880. Poraniomorpha rosea, Danielssen & Koren. Nyt
Mag. for Naturv. Christiania. 26. B., pag. 189.
Forholdet mellem den lille og store Radius som
1 : l2/s. Ryggen kun lidet hvælvet, Bugen flad.
Analaabningen subcentral, omgiven straaleformigt af fine Pigge.
Madreporpladen rund, nedsænket i en Grube af Huden
The ocular plate is nearly cubical, and has a small
furrow on its inferior surface.
In the inner, nearly acute angle of the interbrachial
space, the odontophore is observed (Pl. XI, fig. 6, d). It
is oblong in form, and has two small apophyses; one upon
either lateral margin.
The teeth are long, and entirely close the mouth
(Pl. XI, fig, 6, c).
Colour.
The abactinal surface is brick red, and the actinal
surface is white. The madreporite, and anal aperture are
yellow.
Habitat.
Station No. 200. One large and one small specimen.
— „ 303. One small specimen.
— „ 359. One very small specimen.
Generic Character.
The body convex; pentagonal. The rays short;
robust. The dorsal integument without skeleton, but
everywhere beset, with slender, isolated calcareous spines, having
tentacular pores situated between them. Rudimentary
dorso-marginal plates. Ventro-marginal plates furnished with
spines. The interbrachial spaces of the actinal surface,
have small calcareous plates, arranged in arcuate form,
and carrying one or more spines. The anus central. Two
series of suckers free from spiculæ. No pedicellariæ.
Specific Character.
The body thick. Both the disk and the rays convex.
The disk radius bears to the brachial radius, the
proportion of as 1 : ls/8. The furrow papillæ are placed in 3
series, of which, those in the inmost series are the longest.
The ventro-marginal plates are furnished with 3 spines.
In the interbrachial space there are 3 arcuate series of
spines, and between these series, solitary spines occur. The
actinal surface a beautiful white colour. The madreporite,
and anal opening yellow.
Poraniomorpha rosea, n. g. and sp.
Pl. X, figs. 8—14.
1880. Poraniomorpha rosea, Danielssen and Koren. Nyt
Mag. for Naturv. Christiania. 26. B., pag. 189.
The proportion of the disk-radius to the brachial
radius is, as 1 : 12/3. The abactinal surface is only slightly
arched, whilst the actinal surface is flat. The anal
aperture is submesial, and is surrounded by slender, radiating
o*
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