276 MEAD. [Vol. XIII. 



Eupo7natus uncinatus, Hatschek^* 



Nereis Dtimmerillii (suppressed trochophore), von Wistinghausen * 



Nereis limbata and ftiegalops, Wilson ^ 



Hydroides sp., " 



Polymnia nebulosa, " 



Spio fiilginosus, " 



Ariciafceiida, " 



Amphitrite oi^nata, Mead ^^ * 



Cfymenella iorquata, " * 



Scolecolepis viridis, " * 



Lepidonotus sp., " * 



ChcBtopterus pergamentaceus, Mead.'^* * 



Among flatworms : 

 Discoccelis, Lang.^^ 



Among molluscs : 

 Plaiiorbis, Rabl ^^ 

 Neritina, Blochmann "^ 

 Crepidula, Conklin ^^> 1^ 

 Umbrella, Heynions^ 

 Unio, Lillie^ 

 Limax, Kofoid * 

 Physa, Crampton 20 

 LiniJicEa, " 

 Patella, Patten.21 



^* Hatschek, B.: Entwicklung der Trochophora von Eupomatus uncinatus 

 Phillippi. Arb, zool. Ittst. Univ. Wieti, Bd. 6. 



^^ Lang, Arnold : Die Polycladen, etc. Fauna und Flora des Golfes von 

 Neapel, vol. XI, 1884. 



IS Rabl, C: Ueber die Entwicklung der Tellerschnecke. Morph. Jahrb., vol. 

 V, 1879. 



'^ Blochmann: Ueber die Entwicklung von Neritina fluviatilis. Zeitschr. f. 

 wiss. Zool; Bd. 36, 18S2. 



18 Conklin, E. G.: Preliminary Note on the Embryology of Crepidula fomicata 

 and Urosalpinx cinerea. Johns Hopkhis Univ. Circ, vol. X, no. 88, 1891. 



1^ Conklin, E. G.: The Cleavage of the Ovum in Crepidula fomicata. Zool. 

 Anz., Jahrg. 15, 1892. 



20 Crampton, H. E.: Reversal of Cleavage in a Sinistral Gasteropod. Annals 

 N. Y. Acad. Sci., vol. VIII, 1S94. 



21 Patten, W. : The Embryology of Patella. Arb. zool. Ittst. Univ. Wicn, Bd. 6. 

 2* Mead, A. D.: Some Observations on the Maturation and Fecundation of 



Chsetopterus pergamentaceus Cuvier. Journ. of Morph., vol. X, no. i. 



25 Mead, A. D.: Preliminary Account of the Cell Lineage of Amphitrite and 

 other Annehds. Journ. of Morph., vol. IX, no. 3. 



* Previous chapters. 



