KEPOKT OF NATIONAL MUSEUM, 1908. 



131 



Clark, Austin Hobart — Coutiuued. 



species, and Comasicr L. Agassiz 

 1836 (type C. muUinidiain Lin- 

 naeus 1758) witii 44 species. Tlie 

 author sbows tiiat Encrinus parrae 

 of Guerin 1835 is tlie same as 

 Pentacriiiits miiUeri Orsted, whicla 

 should therefore be known as Iso- 

 crinus parrae (Guerini. 



The stalked crinoids of tlie Si- 



boga Expedition. 



American Naturalist, XLii, Xo. 

 495, Mar., 1908, pp. L'03-206. 

 A review of a monograph by Dr. 

 L. Doderlein on the recent stalljed 

 crinoids of the East Indies, based 

 on the collections made by the " Si- 

 boga " Expedition, and containing 

 the announcement of the discovery 

 of the infrabasals in a species of 

 Metacrinus. 



• New genera of nnstalked cri- 



8oc. Washington, 

 11. 1908, pp. 12.5- 



noids. 



Proc. Biol 



XXI, Apr 



136. 



Thirteen new genera of Comatu- 



lida are described, while the new 



name Pentametrocrinidae is given to 



the family containing Pentametro- 



criniis and Decametrocrinus. The 



paper concludes with a systematic 



list of the families and genera of 



Comatulida. 



New stalked crinoids from the 



eastern coast of North America. 



Proe. U. 8. Xat. Mus., xxxiv. 

 No. 1607, May 4, 1908, pp. 

 205-208, figs. 1-3. 

 Two new species are described — 

 Bathycrinits serratus and Rhizocri- 

 mis rerriJli — the types of which 

 were collected by the U. S. Fish 

 Commission and were recently re- 

 turned to the U. S. National Museum 

 by Prof. A. E. Verrill. 



Descriptions of new species of 



crinoids, chiefly from the collections 

 made by the U. S. Fisheries steamer 

 Albatross at the Hawaiian Islands 

 in 1902 ; with remarks on the classi- 

 fication of the Comatulida. 



Proc. U. 8. Xat. Mus., xxxiv. 

 No. 1608, May 14, 1908, pp. 

 209-239. 

 Gives a liey to the 11 recent fam- 

 ilies of Comatulida, and their geo- 

 graphical and bathymetrical range ; 

 also a table of distribution for the 

 29 genera, and a key to the 12 Ha- 



Clark, Austin Hobabt — Continued. 



waiian species of which 11 are de- 

 scribed as new. Thirteen other new 

 species are descrilied from various 

 parts of the Atlantic and Pacific 

 oceans. 



Two new crinoid genera. 



Proc. Biol. Soc. WasJiinr/ton, 

 XXI, June 9, 1908, pp. 149- 

 152. 

 Subdivides the genus Isocrinus on 

 characters of arm structure, erect- 

 ing two new genera. Endoj-ocrinus, 

 type E. parrae (Gu&rin). and Hypa- 

 locriniis, type II. naresianus, P. H. 

 Carpenter. 



Some cases of abnormal arm 



structure in recent crinoids. 



Proc. U. 8. Nat. Mus.. xxxiv. 



No. 1612, June 16, 1908, pp. 



265-270, figs. 1-5. 



Records instances of abnormal 



arm structure in Rhi.::ocrinus lofo- 



tensis, Picilometra acvla, Himero- 



inetra stylijcr, Cliaritometra imhri- 



cata, Heliometra tanneri and H. 



majrima. 



The crinoid genus Eudiocrinus, 



with description of a new species. 



Proc. U. 8. Nat. Mus., xxxiv. 

 No. 1613, June 20, 1908, pp, 

 271-279, figs. 1-11. 

 Discusses the structure of the va- 

 rious species previously included in 

 Eudiocrinus and demonstrates their 

 position in two families, Zygomet- 

 ridae and Pentametrocrinidae. The 

 genera Eudiocrinus and Pentametro- 

 crinus are defined, and a new species 

 of Eudiocrinus is described. 



Clark, Hubert Lyman. The Cidaridae. 

 Bull. Mus. Comp. Zooh, Li, No. 

 7, Dec, 1907, pp. 165-230, 

 pis. 1-11. 

 Gives a history of the classifica- 

 tion of the Cidaridae. Recognizes 21 

 genera and 60 recent species ; two 

 genera and three species are de- 

 scribed as new. 



The Apodous Holothurians. A 



monograph of the Synaptidae and 

 Molpadiidae, including a report on 

 the representatives of these families 

 in the collections of the U. S. Na- 

 tional Museum. 



Smithsonian Contributions to 

 Knowledge, part of vol. xxxv. 

 No. 1723, Jan. 21, 1908, pp. 

 1-231, pis. i-xiii. 



