Adambulacralpladerne bere 3 Pigge (Hovedformen 
berer 6 Pigge); forresten er Skeletbygningen ens. 
Vi have været i Tvivl om, hvorvidt vi skulle opfore 
denne Søstjerne som en særegen Art eller som en stærkt. 
udpræget Varietet af den foregaaende; men ihvorvel den | 
adskiller sig fra denne 1 flere væsentlige Punkter, have vi 
dog ladet den staa som en til en ny Art sig oparbeidende 
Varietet. 
Farven. 
Ryggen mørk gulrød med gule Flækker. Madrepor- 
pladen straagul, ligesaa Anus, Tab. XV, Fig. 3. Bugen 
smuk gul. Paa Spidsen af Armene et orangerødt Øie. 
Findested. 
Station 164, 1 Exempl. 338, 2 Exempl., hvoraf 1 
lidet. 363, 2 storre og 1 mindre Exemplar. 
Udmaalinger af 3 Exemplarer. 
No. 1. Hele Gjennemsnittet 5 mm, 
Hoiden . 10”, 
Store Radius . RFID, 
Lille do. > 183—=142, 
No. 2. Hele Gjennemsnittet 4onm, 
| Høiden . ee, 
Store Radius . Sila, 
Lille do. 1072, 
No. 3. Hele Gjennemsnittet NST, 
Høiden . Gros 
Store Radius . lar, 
Lille do. (Bo Na 
Tylaster Willei, n. 2. & sp. 
Tab. XI, Fig. 1—6. Tab. XV, Fig. 4. 5. 
1880. Tylaster Wiliec, Koren & Danielssen. Nyt Mag. 
for Nat. Christiania, 26de B. pag. 186. 
I et IT, fig. 1—5. 
Tab. 
Denne merkelige Søstjerne maa henføres til den af 
Professor Perrier opstillede Familie Asterinidæ, hvortil Dr. 
Viguier fornylig vistnok med Rette henforer Slægterne: 
Pateria, Gray; Asterina, Nardo; Palmipes, Linck; Disaste- 
The adambulacral plates carry 3 spines (the normal 
form carries 6 spines), but otherwise, the construction of 
the skeleton is similar to that of the normal form. 
We have been in doubt, whither we ought to clas- 
sify this starfish as a particular species, or, as a strongly 
marked variety of the previously described one, but, al- 
though it differs from that one, in several important points, 
we have allowed it to stand as a variety evolving towards 
a new species. 
Colour. 
The abactinal surface is dark orange, with yellow 
patches. The madreporite is straw-coloured, and the anus 
is of a similar colour (Pl. XV, fig. 3). The actinal sur- 
face is a beautiful yellow. There isa dark orange coloured 
eye seated at the tip of the rays. 
Habitat. 
Station No. 164. One specimen. 
— , 338. Two specimens, of which, one was 
a small one, 
— » 363. Two large and one small specimen. 
Dimensions of 3 specimens. 
No. 1. Total diameter of the starfish 57””. 
Thickness LO, 
Length of the brachial radius 28””. 
Length of the disk radius 13—14"”, 
No. 2. Total diameter of the starfish 40", 
Thickness ible) 
Length of the brachial radius 21””. 
Length of the disk radius 102, 
No. 3. Total diameter of the starfish 257”. 
Thickness Gs, 
Length of the brachial radius 13””. 
Length of the disk radius Q(x, 
Tylaster willei, n. g. and sp. 
Pl. XI, figs. 1—6. Pl. XV, figs. 4. 5. 
1880. Tylaster Willei, Koren and Danielssen. Nyt Mag. 
for Nat., Christiania, 26de B., pag. 186. Tab. 
I et II, figs. 1—5. 
This remarkable starfish must be assigned to the 
family of Asterimidæ, established by Professor Perrier, and 
to which Dr. Viguier, has lately, and no doubt with rea- 
son assigned the genera; Pateria, Gray; Asterina, Nardo; 
