TITLES. 
Moll . 29 
447. Tit INCH ese, S. Sul sistoma ncrvoso dol Phyllobranchns borgninii. 
Komi. Acc. Napoli, ii, pp. 37 & 38. 
448. Tryon’s Manual of Conchology . . . Continuation by H. A. 
Pilsbry. Yol. xv (pt. 60), pp. 181-436, pis. xliii-1, lix-lxi; vol. xvi 
(pts. 61 & 62), pp. 1-112, pis. i-xxxi. Opisthobranchiata (continued). 
449. . Second series, Pulmonata. Yol. ix (pt. 36), pp. 161-366, 
Guide to the genera and subordinate groups of Helices (completed) 
and index to the Helices [vols. i-ix], 126 pp. ; vol. x (pts. 37 & 38), 
pp. 1-96, pis. ii-xxx, Bulimi. 
450. Uexkull, J. von. Physiologische Untersuchungen an Eledone 
moschata. iv. Zur analyse der Functionen des Central Nerven- 
systems. Zeitschr. Biol, xxxi, pp. 584-609, 2 pis. 
451. TJlicny, J. Einige neueFormen der Mollusken-Fauna von Bohmen. 
Verh. Yer. Brunn, xxxiii, pp. 107 & 108. 
452. ° Ulricii, E. O. The lower Silurian Lamellibranchiata of 
Minnesota. Rep. Geol. Surv. Minnesota, 1894, 54 pp., 8 pis. 
453. Vallentin, R. Some remarks on the Dispersal of marine animals 
by means of Seaweeds. Ann. Nat. Hist, xvi, pp. 418-423. 
454. Yanatta, E. G. Notes on the smaller American Planorbes. 
Nautilus, ix, pp. 52-55. 
. [See also Pilsbry & Vanatta (335).] 
455. Vanstone, J. II. On the sinistral character of the Shell of 
Planorbis. P. Malac. Soc. London, i, pp. 254-256, figg. 
456. Yarigny, H. de. Note sur la periode de croissance chez Lymncca 
stagnalis. Bull. Mus. Paris, i, pp. 131 & 132. 
457. Vayssiere, A. Etude sur l’organisation de Yllomalogyrct. Ann. 
Sci. Nat. xix, pp. 363-378, 1 pi. 
458. . Etude zoologique de VOvula ( Neosimnia ) spelta, L., et du 
Conus mediterrcineus, Brug. J. Conchyl. xliii, pp. 1-18, 1 pi. 
459. -. Sur le dimorphisme sexuel des Nautiles. C.R. Ac. Sci. cxx, 
pp. 1431-1434. Abstr. in J. R. Micr. Soc. 1895, p. 520. 
460. Verco, J. C. Descriptions of new species of marine Mollusca of 
S. Australia. Tr. R. Soc. S. Austral, xix, pp. 84-94. 3 pis. 
461. . A revision of the recent Gasteropods of S. Australia. Pt. i. 
T. c. pp. 94-107. 
462. Vernon, H. M. The rospiratory oxchange of the lower Marino 
Invertebrates. J. Physiol, xix, pp. 18-70. 
Villepoix, Moynier de. [See MoTnier de Villepoix (294).] 
463. Vinassa de Regny, P. E. Synopsis dei Molluschi terziari delle 
Alpi Venete. Pt. i. Palseontogr. Ital. i, pp. 211-275, 3 pis. 
