Chap. VI. TABULAR VIEW. 159 



5tli Family. Poltclonid.b Agass. Not only are the long branching arms 

 characteristic of this family ; it diifers also from all the other 

 Rhizostomeaj by its peculiar symmetry, there being no eyes 

 in the radial prolongation of the genital pouches. Compare 

 page 139. 

 Polyclonia Br. 



P. Mertensii Br., Mgm. Ac. St. Petersb., 18.38, Vol. II. Pis. 21, 22, 

 23. — Rhizostoma Mertensii Br., Bull. — Cassiopea Mertensii 

 Br., Prodr. — Caroline Islands: JJalan (Mertens). 

 P. frondosa Ay. — Medusa frondosa Pali, Spicil. Zool., X. PI. 2. 

 figs. 1-3. — Cassiopea frondosa Lnilc, Esch. — Cassiopea Pallas 

 Per. and LcS. — West Indies (Pallas) ; Florida : Key West and 

 Key Largo (L. Agassiz). 

 P. theophila. — Cassiopea dieuphila Per. and LeS. — Cassiopea the- 

 ophila Lmk. — Rhizostoma theophila Esch. — New Ilolland: With's 

 Land (Peron and LeSueur). 

 Salamis Less. Prodr. (name preoccupied). — Orythia Q. and G. 



S. toreumata Less. — Orythia incolor Q. and G., Voy. Astr., PL 25, 

 fig. 10. — 3Ioluccas Islands (Lesson). 

 Homopneusis Less. 



H. frondosus Less., Voy. Coquille, Mollusques, PL 12. — Waigiou 

 Island (Lesson). 

 6th Family. Favonid.e Agass. See p. 135 of this volume. 

 Favonia Per. and LeS. — Orythia Lmlf. (p. jx). 



F. octonema Per. and LeS. — New Ilolland (Peron and LeSueur). 



F. hexanema Per. and LeS. — Tropics: Atlantic (Peron and LeSueur). 



Lymnorea Per. and LeS., DeBL, Esch., Less. — Diansea Lmk. (p. p.). 



L. triedra Per. and LeS. — New Holland (Peron and LeSueur). 



2d Sub-order. SEM^OSTOME.E Agass. See page 9 of this volume, in which 



the characteristics of this sub-order are contrasted with those 



of the Rhizostomeae and Haplostomete. 



1st Family. Aurelid^ Agass. See p. 80 for the characters of the family. 



Aurelia Per. and LeS., 1809. — Medusa Lin., 1746, Esch. — Ephyra 



Per. and LeS., 1809. — Ocyroe Per. and LeS., 1809. — Evagora 



Pir. and LeS., 1809 (p. p).— Orythia LmJc, 1815 (p. p.).— Cya- 



n?ea Cuv., 1818 (p. p.). — Scyphistoma Sars, 1829. — Rhizo.stoma 



Esch., 1829 (p. p.). — Strobila Sars, 1835. — Diplocrasjjedon 



Br., 1835. — Monocraspedon Br., 1835. — Claustra Less., 1837. 



— Biblis Less., 1837. — Macrostoma Less. — Laodicea Less., 1843. 



