ON THE SHETLAND CRUSTACEA, TUNICATA, ETC. 313 



Ophwpholis aculeata (Miiller) = Ophiocoma lellis, Forbes. Low water to 170 



fathoms. 



Ophiura lacertosa (Pennant)=0/>7mm* 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. Yery 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, Chiajii, &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 ASTEBOIDEA. 



Astropecten irregularis (Pennant) Asterias aurantiaca, Forbes. 



acicularis, Norman. Living gregariously on the Out Skerries Outer 



Haaf, in 80-100 fathoms. 

 Luidia Savignii ( Audouin) = LvAdia 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 (Dub. & 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. 



Yar. aculeatum = Astrogonium aculeatum, Barrett, Ann. Nat. Hist. 



2nd ser. vol. xx. p. 47, pi. 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 (Miiller). Very common, and besides the ordinary 



form there are found two very distinct varieties. 



Yar. 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. 



Yar. abyssicola. Has the rays produced, very slender, well rounded, 



and very firm. The paxillce, 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 2| inches. Dredged in 



very deep water. 

 Stichaster roseus (Miiller). Deep water, rather local. 



1868. z 



