Chap. I. THE CORYNE MIRABILIS. 



185 



u 

 u 



li 

 u 



u 

 1( 

 il 



Coryne, Wright, Edinb. New Phil. Trans., 1857, Vol. VI. p. 83, PI. II. FUj. 7. 



" 1858, Vol. VII. pp. 282 and 296, PI. VII. 

 Fig. 5. 

 " Allraan, Annals and Mag. Nat. Hist., 1859, p. Ul. 

 Slipula, Sars, Bidrag til Sordyrenes Naturhistorie, 1829; transl. in Isis, 1833, p. 221, 



Tab. X. Fifj. 1. 

 Sf/neori/na, Ehrenberg, Corallenthiere, Konigl. Akad. Wissenschaft., Berlin, 1834. 



" Loven, Handl. Kongl. Svensk. Vetensk. Akad., 1835, and translated in 



Wieg., Archiv, 1837, p. 321, Tab. VI. 

 Steenstrup, Generationswechsel, 1842, p. 19. 

 Van Beneden, Embryogenie des Tubulaires, Acad. Roy., Bruxclles, 1844, 



p. 51, PI. III. 

 Dujardin, Ann. Sc. Naturelles, 1845, IV. p. 275, PI. XIV. 

 Sars, Fauna Litt. Norvegica, 1846, p. 2, PI. I. 

 Agassiz, Lect. Embryol, 1848, p. 39. 

 Desor, Ann. Sc. Naturelles, 1849, XII. p. 204, and Fig. 

 McCrady, Proc. Elliot Soc, Charleston, S. C, 1858, Fig. 35. 

 Acrochordium, Meyen, Nov. Acta Acad. Nat. Cur., 1834, XVI. p. 165, Tab. XXVIII. 



Figs. 8 and 9. (?) 

 Hermia, Johnston, Brit. Zooph., 1st ed., 1838, p. Ill, and Fig. 



" Hassal, An. Mag. Nat. Hist., 1841, VII. p. 283, PI. VI. fig. 2. 

 Oceania, Sars, Beskrivelser, 1835, p. 22, PL V. Figs. IV and ll^. — Dujardin in 



Lam'rk, 2d ed. — Agassiz, Lect. Embryol., pp. 33 and 44. 

 Sat'sia, Lesson, Acalephs, 1843, p. 333. 

 " Forbes, Naked-eyed Medusce, 1848. 

 " Agassiz, Mem. Amer. Acad. 1850. 



SECTION II. 



THE HYDROID FORM OF CORYNE MIRABILIS. 



In order to obtain a correct idea of this Hydroid, the observer must watch 

 it in its native element, under all the circumstances and conditions of its natural 

 mode of existence and development. After it has been kept in confinement for 

 a day or two, it loses its brightness and color, in a great measure, and assumes 

 strange attitudes; such as an excessive elongation of the club-shaped head and 

 tentacles, which look as if reaching after something, or a stiff, angular position, 

 bristling with straightened, rigid tentacles. But when floating freely in the water, 



VOL. IV. 24 



