156 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



characterized by its pale coloration, by having only two cerata in 

 each row, and by the small number of lateral denticulations on the 

 teeth. 



Phidiana longicikeha, n.sp. PI. XIV, Fig. 12. 



One specimen. Mr. Crossland's notes on the living animals are 

 as follows : — 



" Crawled out of stones dredged in shallow water off the north 

 shore, Porto Grande. Body narrow, and foot pointed behind, but not 

 forming a tail. Translucent white, with a few collections of white 

 specks Foot with expanded angles in front, but not tentaculiform, 

 grooved, but groove widely open above to the mouth. Oral tentacles 

 conspicuously long, and generally hooked back at the tips, but, on the 

 whole, carried at right angles to the body, llhinophores much shorter, 

 but still long, brownish yellow in colour, perfoliated almost to the 

 bases. Fairly conspicuous eyes just behind. The colourless liver 

 diverticula all well seen, and behind is the heart beating. In the 

 cerata the liver becomes darker in colour, but slender and drab brown, 

 forming a thread of black distally. 



" The median cerata are long and tapering, and the ends are carried 

 bent over downwards ; they are xevy mobile, and, probably in connection 

 with this, are delicately ringed. They have a considerable amount of 

 yellow pigment in the skin as well as in the liver diverticula ; also 

 some whitish specks. 



"■ Their arrangement is in two sets as follows : — The back is bare in 

 the middle, and the cerata are arranged in two sets, in a longitudinal 

 band on each side. The first set begins just behind the rhinophores, 

 with some laterally placed, small, straight cerata. The row is three 

 or four deep further back, containing three of the long curved cerata 

 in a longitudinal row in the middle, shorter nearly straight ones 

 laterally, and very small quite straight ones outside. After a distinct 

 bare space, a similar arrangement is repeated, but the longest cerata 

 are shorter, and there are only two on each side. After this are small 

 scattered cerata to within a short distance from the tip of the tail. 



" The arrangement might also be described as sets of obliquely 

 placed, transverse lines, becoming quite transverse in the second set. 

 But there are no projections of the body to support the cerata. 



" Another specimen from Alcyonium.^^ 



Only one of the specimens preserved really belongs to this species, 

 the others being Spurilla neapolitana, which have found their way 

 into the bottle by mistake. 



The single specimen agrees with tbe description as far as the 

 characters can still be recognized. It is 9 mm. long and 3 broad, 

 somewhat compressed laterally. The cerata are arranged as described, 

 and still show traces of annulation (Fig. 12). The longest measure 

 6 mm., and are very thin ; the outermost are mere tubercles. The 

 liver-diverticula within them have a very irregular outline, and 

 sometimes appear twisted. The cuido-sacs are large. The oral 

 tentacles are stout and strong. The anterior end of the foot is 

 rounded, as preserved, and the angles are not visible. 



