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Nutting, C. C. Descriptions of the Alcyonaria collected by the U. S. Bureau of 

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 Proceedings of the U. S. National Museum, vol. 34, 1908, pp. 543-601. 



Alcyonarians of the Calif ornian Coast, Proceedings of the U. S. National 



Museum, vol. 35, 1909, pp. 681-727. 



— — Gorgonacea of the Siboga Expedition, III, the Muriceidse. Leiden, 1910. 



Pallas, A. S. Elenchus Zoophytorum, 1766. 



Studer, Th. tjbersicht der Anthozoa Alcyonaria welche wahrend die Raise S. M. S. 

 Gazelle um die erde gesammelt wmden. Monatsbericht der konigl. Akademie 

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Thomson J. A, and Henderson, M. A. Report on the Pearl Fisheries of the Gulf of 

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, An account of the Alcyonaria collected by the Royal Indian Marine Sur- 

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and Simpson. (Same publication as above.) II, The Alcyonaria of the Lit- 



toral Zone, Calcutta, 1909. 



Verrill a. E. Notice of recent additions to the Marine Fauna of the Eastern coast 

 of North America, No. 2. American Journal of Science and Arts, vol. 16, 1878. 



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in 1877-1879, and by the U. S. Fish Commission steamer Fish Hawk in 1880. Bul- 

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■ (Same publication as above) II, Die Primnoidae, Leiden, 1906. 



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Challenger during the Years 1873-1876, vol. 31, part 64. London, 1889. 



EXPLANATION OF PLATES. 



The photographs were made from nature by C. C. Nutting. 



The spicules were drawn under the camera lucida by Dayton Stoner. 



Plate 1. 



Fig. 1. Clavularia japonica, natural size; la, single calyx X 4.3. 



2. Clavularia sulcata, natural size; 2a, single calyx X 4.3. 



3. Lithophytum roseum, natural size; 3a, portion of colony X 4.3. 



Plate 2. 



Fig. 1. Dendronephthya nigripes, natural size; la, part of branch X 4.3. 



2. Dendronephthya magnacantha, natural size; 2a, part of branch X 4.3. 



3. Dendronephthya oviformis, natural size; 3a, part of branch X 4.3. 



4. Bellonella flava, natural size; 4a, part of colony X 4.3. 



Plate 3. 



Fig. 1. Alcyonium Tcukenthali, natural size; la, part of surface X 4.3. 



2. Anthomastus japonicus, natural size; 2a, zooids on surface X 4,3. 



3. Nidalia gracilis, natural size; 3a, part of colony X 4.3. 



