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HILGENDORF, F. Susswasserschwamme aus Centralafrica gesammelt von Dr It. 

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HINDE, GEORGE JENNINGS. Fossil Sponge Spicules from the Upper Chalk. 

 Found in the interior of a single flint-stone from Horstead in Norfolk. 83 pp. 

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HINDE, GEOKGE JENNINGS. Notes on Fossil Calcispongias, with Descriptions of 

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HOGG, JABEZ. Is the Fresh-water Sponge (Spongilla^ an Animal ? Pop. Sci. 

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HOLDSWORTH, E. W. H. Note on the Occurrence of Xenospongia patelliformis, 

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HOLL, HABVEY B. Notes on Fossil Sponges. Geol. Mag. Vol. ix. pp. 309 315, 

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HOLL, H. B. The Epitheca in Fossil Sponges. Monthly Microsc. Journ. Vol. 

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HUGHES, W. E. Notes on the Development of a Deep-Sea Sponge (Halichondria). 

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HYATT, A. Hollow-Fibred Horny Sponges. (Abstr.) Proc. Boston Nat. Hist. 

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HYATT, A. Eevision of the North American Poriferse. Pt. I. Mem. Boston Soc. 

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HYATT, A. On a new Species of Sponge (Aplijsina pedicellata). Proc. Acad. 

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HYATT, A. Commercial and other Sponges illustrated. 43 pp. 12mo. Boston, 

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HYATT, J. D. The Boring Sponge Does it excavate the burrows in which it is 

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JOHNSON, J. YATE. Description of a New Siliceous Sponge from the Coast of 

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JULIEN, ALEXIS A. On two Varieties of Sponge-Spicules. Amer. Journ. of Sci. 

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KELLEK, C. Uiitersuchungen iiber die Anatomie und Entwickelungsgeschichte 

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KELLER, C. Ueber den Bau von Reniera semitubulosa, 0. S. Ein Beitrag zur 

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KELLER, C. Zur Entwickelungsgeschichte der Chalineen. Zool. Anzeiger, Vol. 

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KELLER, C. Studien iiber Organisation und Entwickelung der Chalineen. 

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KELLER, C. Neue Coelenteraten aus dem Golf von Neapel. Arch. f. miTcrosk. 

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KENT, W. SAVILLE. On, the Hexactinellidte. or Hexradiate Spiculed Silicious 

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