ON THE SHETLAND CRUSTACEA, TUNICATA, ETC. 313 
Ophiopholis aculeata (Miiller) = Ophiocoma bellis, Forbes. Low water to 170 
fathoms. 
Ophiura lacertosa (Pennant)= Ophiura texturata, Forbes. 
Sarsii, Liitken. In 80-100 fathoms, 40 miles east of Whalsey Skerries, 
in 1861, and subsequently procured 20-25 miles north of Unst. 
albida, Forbes. Very common. A slender variety in St. Magnus 
Bay. 
affinis, Liitken,=Ophiura Normani, Hodge. Haddock-ground to the 
north of Whalsey Skerries ; 5-10 miles east of Balta, and very abundant 
in company with Ophiura lacertosa, albida, squamosa, Amphiura filifor- 
mis, Chiajit, &c., on soft mud, in 30-60 fathoms, St Magnus Bay. 
squamosa, Liitken. Two fine specimens, dredged 1867, in about 60 
fathoms, St. Magnus Bay. 
Order ASTEROIDEA. 
Astropecten irreqularis (Pennant}= Asterias aurantiaca, Forbes. 
acicularis, Norman. Living gregariously on the Out Skerries Outer 
Haaf, in 80-100 fathoms. 
Luidia Savignii (Audouin)= Luidia fragilissima, Forbes. Fishing-boats from 
Middle Haaf, Out Skerries, 1861; also St. Magnus Bay, 1867. 
Sarsii, Diiben & Koren. This smaller five-armed species would appear 
for the most part to be an inhabitant of deeper water than its congener, 
and is much more’ common in the Shetland seas. 
Archaster Parelii (Diib. & Koren). The first British specimen procured in 
1864, in 100 fathoms, to the north of Unst; a second from near the 
same ground in 1867, in 170 fathoms. 
Palmipes placenta (Pennant). A southern species which attains its northern 
limit in Shetland, where it seems widely diffused, though numerically 
scarce; 15-100 fathoms, 
Solaster papposus (Linn.). 
endeca (Linn.). 
Porania pulvillus (Miiller)= Goniaster Templetoni, Forbes. Scarce. 
Goniaster phrygianus (Parelius)=G'. equestris, Forbes. Not uncommon in 
deep water. 
Var. aculeatum = Astrogonium aculeatum, Barrett, Ann. Nat. Hist. 
_ 2nd ser. vol. xx. p. 47, pl. iv. fig. 4. Two specimens of this well- 
marked variety, in which the tubercles of the upper marginal plates are 
nearly or quite obsolete, were found in 75-100 fathoms, off Unst, in 
1864. 
Cribrella sanguinolenta (Miller). Very common, and besides the ordinary 
_ form there are found two very distinct varieties. 
Var. curta, which has the rays much shorter, broader, and flatter 
than in the type, and their texture much less firm. It is of a pale 
yellow colour, and rarely exceeds 2 inches in diameter. Found between 
tide-marks in Balta Sound. 
Var. abyssicola. Has the rays produced, very slender, well rounded, 
and very firm. The paxille, especially those of the under surface, are 
most distinct and more separated from each other than usual, and the 
individual spines have their apices more distinctly and deeply trifid. 
Colour a rich saffron-yellow ; greatest diameter 23 inches. Dredged in 
very deep water. 
Stichaster roseus (Miller). Deep water, rather local. 
1868. © z 
