1886.] POSITION AND CLASSIFICATION OF SPONGES. 599 



Hackel's View on the Eelationship of tlie Sponges to the Corals. Ann. 

 M. N. H. ser. 4, vol. viii. pp. 1-28 (1871). 



168. Carter, H. J. Description and Illustration of a new Species of Tdlvja, 

 with obsei-vatious on the Nomenclature of the Tethyada;. Ann. M. N. H. 

 ser. 4, vol. viii. pp. 09-101) (1871). 



1G9. . Parasites of the Sponges. Ann. M. N. H. ser. 4, vol. viii. pp. 330- 



332(1871). 



170. . Additional information on the structure of Tnfhja dacfyloidca, 



Cart. Ann. M. N. H. ser. 4, vol. ix. pp. 82-84 (1872). 



171. . On two new Sponges from the Antarctic Sea, and on a new Species 



of Tetki/a from Shetland {Tethya antarctica, RosseUa antarctica) : to- 

 gether with observations on the Reproduction of Sponges, commencing 

 from Zygosis of the Sponge-animal. Ann. M. N. H. ser. 4, vol. ix. 

 pp. 409-43G (1872). 



172. . Proposed name for the Sponge-animal, viz. " Sp07iffoso07i" ; also on 



tlie origin of Thread-cells in the Spongiada;. Ami.. M. N. H. ser. 4, 

 vol. X. pp. 45-51 (1872). 



173. . Description, with illustrations, of a new species of Aplysina from 



the N.W. coast of Spain. Ann. M. N. H. ser. 4, vol. x. pp. 101-110 

 (1872). 



174. . Description of two new Sponges from the Philippine Islanc's 



{Meyenia, Crateromorpha). Ann. M. N. H. ser. 4, vol. x. pp. 110-114 

 (1872). 



175. . Answer to Dr. Bowcvbank's "Observations on Mr. Cartei-'s Paper 



&c.," in the last number of the ' Annuls.' Ann. M, N. H. ser. 4, vol. x. 

 pp. 141-142 (1872). 



176. . Description of Labaria hemisjiharica. Gray, a new species of 



Hexactinellid Sponge, with observations on it and the Sarco-hexacti- 

 nellid Sponges generally. Ann. M. N. H. ser. 4, vol. xi. pp. 275-286 

 (1873). 



177. . Points of distinction between the Spongidse and the Foraminifera. 



Ann. M. N. H. ser. 4, vol. xi. pp. 351-356 (1873). 



178. . On two new species of Gumminem {Corticium abyssi, Chondrilla 



australiensis), with special and general observation.?. Ann. M. N. H. 

 ser. 4, vol. xii. pp. 17-30 (1873). 



179. . On the HexactincUidce and Lithisfidcs generally, and particularly 



on the Aphroadiistidcs, Aii/odicfyon, and Farrcee, together with Facts 

 elicited from their Deciduous Structures, and Lcsci'iptions respectively 

 of three new Species (I.). Ann. M. N. H. ser. 4, vol. xii. pp. 349-373 

 (1873). 



180. . On the HcxaciindUdcB and Lifhisiida generally, and particularly 



on the Aphrocallistidce, Aulodutyon, and FarrccE, together with Facts 

 elicited from their Deciduous Structures, and Descriptions resijectively 

 of three new Species (II.). Ann. M. N. H. ser. 4, vol. xii. pp. 437-472 

 (1873). 



ISI. . On the Spongozoa of Halisarca Dujardinii. Ann. M. JS". II. ser. 4, 



vol. xii. pp. 315-316 (1874). 



182. . On Halisarca lobtdaris, Schmidt, off the south coast of Devon 



with observaions on the Relationship of the Sponges to the Ascidians 

 and Hints for Microscopy. Ann. M. A'. H. ser. 4, vol. xiii. pp. 433-- 

 440 (1874). 



183. . On Microciona. Ann. M. N. H. ser. 4, vol. xiv. p. 45 (1874). 



184. . On the Nature of the Seed-like Body of SpongUla ; on the Origin 



or Mother-cell of the Sjjicule ; and on the presence of Spermatozoa in 

 the Sponges. Ann. M. A'. U. ser. 4, vol. xiv. pp. 97-111 ^1874). 



185. . Descriptions and Figures of Deep-sea Sponges and their Spicules 



from the Atlantic Ocean, dredged up on board H.M.S. ' Porcupine,* 



