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Show 1894.] STUDIES IN TELEOSTEAN MORPHOLOGY. 413 PLATE XXV. Figs. 1 & 2. Two views of Patirio briareus from above, to show the habit of the species, nat. size. Fig. 3. Part of arm of do. from above, to show the character of the granulation, x 4. 4. Archaster tenuis from above, X 2. 5. Part of arm of do. from below, X 4. 6. Part of arm of do. from above, X 4. 7. Pectinura splienisci from above, X 2. 8. Part of arm of do. from below, X 4. 9. An angle of the mouth of do., X 8. PLATE XXVI. Fig. 1. A figure of a young Culcita set out from the region of the apical pole to the mouth, so as to show all the plates of rather more than Jth of the whole test, X 8; C, supposed central plate, Tthe terminal. 2. Apical area of Salmacis rufa, X 3. 3. Portion of test of do., X 3, to show ornamentation. 4. A small specimen of Layanum decagonale (L. orbiculare), X 2. 5. Part of petal of same, to show ornamentation, X 8. PLATE XXVII. Fig. 1. Ophiocrene anigma seen from above, of the natural size. 2. One of the arms of the same, X 3, to show the mode of branching and the form of the arm-joints. 3. The disc and bases of the arms of the same from above, X 8, showing the central calycinal plate (c), the radial plates of the calyx (r), the radial shields (r.s.). 4. The disc and bases of the arms of the same from below, to show the general relations of the parts of the peristomial area, X 6. 5. One mouth-angle, X 24, to show the teeth and the oral plates and deep median cleft. 2. Studies in Teleostean Morphology from the Marine Laboratory at Cleethorpes.1 By ERNEST W. L. HOLT, Naturalist on Staff, M.B. Assoc.2 [Received March 7, 1894.] (Plates XXVIII.-XXX.) I. ON SOME SPECIMENS OE THE BIRKELANGE (Molva abyssorum, Nilsson) EROM ICELAND AND FAROE. Principal References and Synonymy. Byrkeldnge, Strom, Trondhj. Handl. iii. p. 446, tab. 8 ; So'nd. Beskriv. ii. p. 275. Molva abyssorum, Nilsson, Prodrorn. Ichth. Scand. p. 466; Giinther, Cat. Fish. Brit. Mus. iv. p. 362. Molva byrkeldnge, Collett, Norg. Fisk. p. 116; Lilljeborg, Sver. o. Norg. Fisk. ii. p. 139. 1 In virtue of an arrangement between the Marine Biological Association and the Marine Fisheries Society of Grimsby, the laboratory, which belongs to • the latter body, is at present under the control of the Association for the prosecution of investigations dealing with the North Sea fisheries. 2 Communicated by Dr. G P N T H E R and Prof. H O W E S . |