620 DR. R. VON LENDENFELD ON THE SYSTEMATIC [Dec. 21, 
687. Hogg, J. On the Action of Light upon the Colour of the River-Sponge. 
Charlesworth Mag. N. H. vol. iv. p. 259 (1840). 
Observations on Spongilla fluviatilis, and further observations, 
with some remarks on the nature of the Spongie marine. Tr. L. Soe. 
vol. xviii. p. 343 (1841). 
689. ——. Observations on Spongilla fluviatilis, and further observations, 
with some remarks on the nature of the Spongie marine. Tr. Linn, Soe. 
vol. xviii. p. 368 (1841). 
On the Action of Light upon the Colour of the River-Sponge. 
(Abstr.) Phil. Tr. 1848, p. 72 (1843). 
688. 
[690.] 
(691.] . Auszug aus den Beobachtungen iiber Spongilla fluviatilis. Isis, 
1843, p. 444 (1843). 
692. ——. Further notice on Spongilla fluviatilis. Ann. M. N. H. ser. 2, 
vol. vii. p. 790 (1851). 
693. ——. On Nardo’s Classification of the Sponges. Ann. M. N. H. ser. 2, 
vol. vii. p. 190 (1851). 
694. Remarks on the Horny Sponges, with proposed Division of the 
Order Spongii. Ann. M. N. H.ser. 2, vol. viii. p. 3 (1852). 
[695.] Ts the Freshwater Sponge (Spongilla) an Animal? Pop. Sci. 
Review, vol. vii. pp. 134-141 (1868). 
696. Holdsworth, E. W. H. Note on the Occurrence of Xencspongia 
patelliformis, Gray, on the Coast of Ceylon. P. Z. S. 1873, pp. 82-33 
(1873). 
697. Holl, Harvey B. Notes on Fossil Sponges. Geol. Mag. vol. ix. pp. 809- 
315 (1872). 
698. ——. Notes on Fossil Sponges. (ol. Mag. vol. ix. pp. 343-352 (1872). 
699. ——. The Epitheca in Fossil Sponges. Monthi. Mier. J. vol. viii. pp. 
141-142 (1872). 
700. Hudleston, W. H. On the Middle Secondary Rocks of Yorkshire. 
P. Geol. Assoc. yo). v. pj. 443-494 (1878). 
701. Hughes, T. McKenny. On the so-called Spongia paradoxica. J. G. 
Soc. vol. xl. p. 273 (1884). 
[702.] ——. On the so-called Spongia paradoxica, 8. Woodw., from the Red 
and White Chalk of Hunstanton. (Abstr.) dan. M. N. H. ser. 5, 
vol. xiii. p. 298 (1884). 
703. Hughes, W.R. Notes on the Development of a Deep-sea Sponge ( Hali- 
chondria). Rep. Brit, Assoc. 1865, pp. 86-87 (1868). 
704. Huxley, T. H. Zoological Notes and Observations.—2. On Tethya. 
Ann. M. N. H. ser. 2, vol. vii. p. 370 (1851). 
705. Zoological Notes and Observations on Thalassicolla. Ann. M,N, H. 
ser. 2, vol. viii. p. 483 (1851). 
706. Manual of the Anatomy of the Invertebrate Animals, p. 110 
(1877). 
707. Hyatt, A. Remarks on the Beatricee, a new division of Mollusca. Am. 
Journ. Sci. (2) vol. xxxix. pp. 261-266 (1865). 
708. Revision of the North-American Porifersee, with Remarks upon 
Foreign Species.—-Part I. Mem. Bost. Soc. vol. ii. pp. 1-10 (1875). 
(709. ] Hollow-fibred Horny Sponges. (Abstr) P. Bost. Soc. vol. xvi. 
pp. 204-205 (1875). 
710. ——. Revision of the North-American Porifere.—Part II. Mem. 
Bost, Soe. vol. ii. pp. 481-554 (1877). 
The Embryology of Sponges. P. Bost. Soc. vol. xix. pp. 12-17 
(1878). 
712, ——. On a new Species of Sponge (Aplysina pedicellata).. P. Ae. 
Philad. 1878, pp. 163, 164 (1879). 
