I 



LEPIDONOTUS. 113 



4. L. pharetratus, scales fifteen pairs, subcircular, imbricate and 

 covering the back, clouded, smooth, with a series of granules on 

 the margin which is ciliated ; tentacular appendages smooth ; feet 

 about thirty-five pairs, the dorsal and ventral fascicle of bristles 

 subequal ; ventral bristle spinigerous on the upper half of the shaft, 

 with an entire tarsiform point. Length 1^". PI. III. figs. 17-19. 



Hab. The littoral region ; rare. 



Desc. Body elliptic-oblong, convex dorsally, rather broader in 

 front than at the tail, covered with scales beautifully variegated with 

 yellow and purplish-brown disposed in small clouds, specks, and 

 ocellated spots. Head concealed, perlaceous, bilobed, heart-shaped, 

 being broadest and deeply emarginated in front. Eyes four, placed 

 in a square, but the hinder pair are nigher than the anterior. An- 

 tennae three, the central one like a short truncate process, the others 

 bulged about the middle and ending in a setaceous point. Palpi 

 two, greatly larger and longer than the antennae, tapered from the 

 base. Mouth with thick involute striate lips. Tentacular cirri 

 similar to the palpi, but they were, with one or two exceptions, either 

 retracted or torn away. Scales fifteen on each side, imbricate, meet- 

 ing on the back so as to leave no naked space, smooth, with a series 

 of small granules near the posterior and external margins, and the 

 latter is densely ciliated with short hairs ; under surface perlaceous 

 and iridescent : the first pair are roundish, the others more or less 

 kidney-shaped, the 1 3th concealed and considerably smaller than the 

 14th and 15th, which again are considerably less than the 12th. 

 The scales are not deciduous like those of L. cirratus, but they are 

 less firmly fixed than those of L. squamatus, and can be removed 

 from their attachments with a little force, excepting the 13th and 

 14th pairs, which are irremoveable without injury. Abdomen flat, 

 furrowed down the middle, smooth and perlaceous. Feet thirty-five 

 pairs, but the crowding of the posterior renders an exact enumera- 

 tion difficult : the stalk stout, scarcely biramous ; the branches 

 nearly equal, armed as usual with yellowish bristles forming a 

 cuneate bunch. Bristles of the superior branch (PL III. fig. 17) 

 unequal in length, but alike in shape and structure, stout, slightly 

 curved, tapering to a sharp point; the inferior half of the shank 

 smooth, the upper half serrated along the convex edge, and seem- 

 ingly striated across ; the apex smooth and tarsiform. The bristles 

 of the inferior branch (fig. 18) rather longer, but not so stout as the 

 superior, somewhat swollen near the middle, whence they taper to a 

 longer and more decidedly tarsiform smooth apex, being armed 

 underneath with a double row of strong serratures. Inferior cirrus 

 shorter than the branch. 



The only specimen I have seen is li inch long and y^ths broad. 

 It was found in a collection of worms made for me by Lieutenant 

 Thomas, R.N., who does not mention the locality in which it was 

 dredged. 



I was in hope that, in this species, I had rediscovered the Aphro- 

 dita scahra of my favourite Otho Fabricius, but I cannot reconcile 



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