648 DR. R. VON LENDENFELD ON THE SYSTEMATIC [ Dec. 21, 
[1439.] Sollas, W.J. On the origin of Freshwater Faunas. A study in 
Evolution. (Abstr.) P. R. Dublin Soc. 1884, pp. 238-240 (1884). 
On the Development of Halisarca lobularis. Q. J. Mier. Sct. 
vol. xxiy. pp. 603-621 (1884). 
[1441.] ——. On the Development of Halisarca lobularis. (Abstr.) J. R. 
Mier. Soc. vol. y. p. 73 (1884). 
[1442.] ——. Le développement de Halisarca lobularis. (Extr.) Arch. Zool. 
expér. sér. 2, tom. iii. Notes, pp. xxvi-xxvili (1884). 
On the Physical Characters of Calcareous and Siliceous Sponge- 
spicules and other structures. P. Bristol Nat. Soc. n. 8. vol. iy. pp. 874- 
392. 
1440. 
1443. 
1444, 
. On a Hexactinellid Sponge from the Gault and a Lithistid from 
the Lias of England. P. R. Dublin Soc. Nat. Hist. n. s. vol. iv. 
pp. 443-446. 
. On Vetulina stalactites, O. S., and the Skeleton of the Anomocla- 
dina. P. R. Irish Ac. ser. 2, vol. iv. pp. 486-492 (1885). 
[1446.] On Vetulina stalactites, O. S., and the Skeleton of the Anomo- 
cladina. (Abstr.) J. R. Mier. Soe. ser. 2, vol. v. p. 464 (1885). 
Note on the Structure of the Skeleton in the Anomocladina. 
Ann. M, N. H. ser. 5, vol. xv. pp. 286-238 (1885). 
1448. ——. A Classification of the Sponges. Ann. M. N. H. ser. 5, vol. xvi. 
p- 395 (1885). 
[1449.] ——. Structure of the Skeleton in the Anomocladina. (Abstr.) J. R. 
Micr. Soc. ser. 2, vol. vy. p. 465 (1885). 
1450. —--. The Tetractinellida. Narrative of the voyage of H.M.S. ‘ Chal- 
lenger,’ vol. i. pp. 450-452 (1885). 
Sponge-spicules. P.R. Dublin Soc. yol. ivy. pp. 874-392 (1885). 
. Sponge-spicules. (Abstr.) J. R. Mier. Soc. ser. 2, vol. vi. pp. 
628-629 (1886). 
1453, —--. Preliminary account of the Tetractinellid’ Sponges dredged by 
H.M.S. ‘Challenger,’ 1872-76.— Part I. The Choristida. P. R. Dublin 
Soc. vol. v. p. 177 (1886). 
Note on the Artificial Deposition of Crystals of Calcite on Spicules 
of a Calcisponge. P.&. Dublin Soc. vol. y, p. 73 (1886). 
A Classification of the Sponges. P. R. Dublin Soc. vol. vy. p. 112 
1445. 
1447. 
1451. 
[1452.] 
1454. 
455. 
(1886). 
[1456.] . A Classification of Sponges. (Abstr.) J. R. Micr. Soc. ser. 2, 
vol. vi. p. 630 (1886). 
. Letter on Dr. Heider’s paper on Oscarella lobularis. Zool. Anz. 
Bd. ix. pp. 518-519 (1886). 
1458. Sorby, H.C. On the Chromatological Relations of Spongilla fluvia- 
tilis. Q. J. Mier. Sci. new ser. vol. xv. pp. 47-52 (1875). 
1459. Sowerby, J. British Miscellany. Vol. i. London (1804-1806). 
1460. Descriptive Notes respecting the Shells figured in plates 11-23 in 
Dr. Fitton’s Strata below the Chalk. Tr. Geol. Soc, ser. 2, vol. iy. 
p. 335 (1836). 
1461. Seagiee. Ueber Fibroin beiSpongien. Ann. Chemie Physik, tom. iii. 
(1860). 
1462. Stebbing, T. R. R. On Parasites of Sponges. Ann. M. N. & ser. 5, 
vol. ii. p. 427 (1878). 
1463. Steinmann, F. Systematische Stellung der Pharetronen. Neues 
Jahrb. Mineral, Geol. Bd. i. p. 79 (1883). 
. Pharetronen-Studien. Neues Jahrb. Mineral. Geol, Ba. ii. pp. 
139-191 (1884). 
1457. 
