Text-book of comparative anatomy . N. F. XII. treatises and works by Dujardin, Weisse, Dalrymple, Leydig, Gosse, Colin, Claparede, Metschnikoff, Semper, Mbbius, Plate, Zelinka, Salensky, Hudson, Joliet, etc. Dinophilus. Eug. Korschelt. Ucbcr Bau und Entwickelung des Dinophilus apatris, in Zcitschr. f. a: Zool. 37 Bd. : 0. Schmidt, Mereschkovsky, Weldon, E. Meyer. Echinoderes and Gastrotricha. E. Metschnikoff. Ueber einige wenig l/ckannte nicdcrc Thicrfornicii. Zcitschr. f. w. Zool. Bd. XV. 1865. H. Ludwig. Die Ordnung Gastrotricha. Zcitschr. f. u\ Zool. Bd. XXVI. 18T5


Text-book of comparative anatomy . N. F. XII. treatises and works by Dujardin, Weisse, Dalrymple, Leydig, Gosse, Colin, Claparede, Metschnikoff, Semper, Mbbius, Plate, Zelinka, Salensky, Hudson, Joliet, etc. Dinophilus. Eug. Korschelt. Ucbcr Bau und Entwickelung des Dinophilus apatris, in Zcitschr. f. a: Zool. 37 Bd. : 0. Schmidt, Mereschkovsky, Weldon, E. Meyer. Echinoderes and Gastrotricha. E. Metschnikoff. Ueber einige wenig l/ckannte nicdcrc Thicrfornicii. Zcitschr. f. w. Zool. Bd. XV. 1865. H. Ludwig. Die Ordnung Gastrotricha. Zcitschr. f. u\ Zool. Bd. XXVI. Reinhard. Kinorhyncha (Echmoderes], ihr anatomischer Bau und ///re StellaIKJ mi System. Zcitschr. f. w. Zool. 45 Bd. further : Dujardin, Greef, Schulze, Biitschli. Chsetognatha. O. Hertwig. Die Chaetognathcn. Eine Mo)toijr«i>hie. Jen. Zcitschr. f. XIV. 1880. G. B. Grassi. / Chctocjnati, in Fauna und Flora dcs Gulfcs von Naqicl. 5. Mono-graphic. 1883. Further, the works of Krohn, Wilms, Kowalevski, CHAPTER V The first division of the Arthropoda—The organisation and development of the Crustacea. THE FIFTH RACE OR PHYLUM OF THE ANIMAL KINGDOM. ARTHROPODA—ARTICULATA. Bilaterally symmetrical animals with chitinous exoskeleton, seg-mented body, and paired jointed extremities on all or some of thesegments. With brain, oesophageal commissures, and segmented ventralchord. With heart lying above the intestine. Sexes separate, withone pair of sexual glands and originally paired ducts from these glands. First Sub-race or Sub-phylum. Branehiata.—Aquatic animals. With the exception of the anteriorantennae all the appendages are morphologically biramose. Respi-ration cutaneous or by means of gills, which are almost alwaysappendages of the basal joints of the limbs. SINGLE CLASS. Crustacea. First appendage to the Sub-race Branehiata : The Trilobites, Gigantostraca,Hemiaspidae, and Xiphosura. Second appendage to the Sub-race Branehiata: The Pantopoda or P


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomycomparative