THE CIRRIPEDIA 141 



Order 5. Rhizocephala. 



Mantle inesent. No appendages nor alimentary canal. A system 

 of absorptive roots nearly always present. 



Families not defined. Probably se^■eral should be recognised. Pdto- 

 (jaster, Kathke ; Saccidina, Thompson (Fig. 80) ; Sijlon, Kroyer ; Clistomc- 

 ois, Lilljeborg ; Leniaeodiscns, F. Miiller ; Triamjulus, Smith ; Duplorhiif, 

 Smith ; Thompsonia, Kossmann. 



LiTKiiATUi;i;. 



1. AiiriviHius, C. JF. H. Ueber einige ober-silurische Cirripedien aus (Jot- 



land. Bih. Svenska Vet. Akad. Handl. xviii. Afd. iv. No. 3, 24 pp. 1 pi., 

 1892. 



2. Studicn idler Cirripcdieii. K. Svenska A'et. Akad. Handl. (n.f.) xxvii. 



(7), 107 pp. 9 pis., 1S95. 



3. Bcnidt, JF. Zur Biologic und Anatomic von Alcippe Idmpaa. Zeitschr. 



wiss. Zool. Ixxiv. pp. 396-457, pis. xix.-xxii. , 1903. 



4. Stiulien an bohrenden Cinipedien (Ordnung Acrotboracica, Gravel, 



Abdominalia, Darwin). Arob. f. Biontologie, i. (2) pi>. 165-210, pis. xiv.- 

 xvii., 1906. 



5. Glaus, C. Die Cypris-iibnlicbe Larve (Puppe) der Cirripedien. . , . Scbr. 



Ges. Natuvw. Marburg, Supi)I. Heft v. 17 pp. 2 pis., 1869. 



6. Darwin, C. A ilonograpb of the Sub-Class Cirripedia, 2 vols. 8vo. Kay 



Soc. London, 1851-1854. 



7. — - A Monograph of the Fossil Lepadidae . . . 1851. A Monograph of 



the Fossil Ijalanidae and Verruc-idae, 1854. Palaeontographical Soc. 



8. Dda(jc, Y. Evolution do la Sacculiiie. Arch. Zool. exi)er. (2), ii. pp. 417- 



736, pis. xxii.-xxx., 1884. 



9. Folder, G. H. A Remarkable Crustacean Parasite [Pelrarca]. Quart. J. 



Micr. Sci. (u.s.) xxx. pp. 107-120, pi. viii., 1889. 



10. Groom, T. T. On.tbe Early Development of Cirripudia. Phil. Trans, clxxxv. 



pp. 119-232. pis. xiv.-xxviii., 1895. 



11. On the Mouth-Parts of the Cypris-Stage of Balanus. Quart. J. Micr. 



Sci. (n.s. ) xxxvii. pp. 269-276, pi. xxix., 1895. 



12. Gruvel, J. Monographic des Cirrhipedes ou Thecostraces. 8vo. Paris, 



1905 [1904]. 



13. Hansen, II. J. Die Cladoeeren und Cirript-dion der Plankton-Expedition. 



Ergeb. Plankton-Exp. ii. 58 pp. 4 pis., 1899. 



14. Ilodc, P. P. C. Keporton the Cirripedia. Rep. Voy. "Challenger," Zool. 



viii. 169 pp. 13 pis., 1883 ; and x. 47 pp. 6 pis., 1884. 



15. Krohn, Aug. Beob. ii. d. Cementapparat u. d. weiblichen Zeugungsorgane 



einiger Cirripedien. Arch. f. Naturgesch. xxv, pp. 355-364, 1859. 



16. Laca:x-Diithicrs, II. dc. Histoire de la Laura Gerardiac. Mem. Acad. Sci. 



France, xlii. (2), 160 pp. 8 pis., 1883. 



17. Lilljehorg, IF. Liriope et Pelfogaslcr, H. Kathke. Nova Acta Soc. Sii. 



Upsalensis, (3), iii. pp. 1-35, pis. i.-iii., and pp. 73-102, pis. vi.-ix., 1859- 



1860. 

 IS. Midler, Fr. Die Rhizocephalen, eine neue Grui)pe schniarotzender Krebse. 



Arch. Naturgesch. xxviii. pp. 1-9, pi. i., 1862. 

 19. Die zweite Entwickelungsstufe der Wurzelkrebse. Arch. Natiirgescli. 



xxix. pp. 24-33, pi. iii., 1863. 



