306 Transactions. — Geology. 



Aulacodiscus amcenus, Grev., var. sparso-radmta, n. var., Gr. 



and St. 

 Aulac. angulatus, Grev. 

 Aulac. barbadensis, Ealfs, "Pritcli." 

 Atdac. ccllnlosus, n. sp., Gr. and St. 

 Aulac. cellulosits, Gr. and St., yax. i^lana. 

 Aulac. comterii, Arnott, var. oaviarueusis, Gr. and St. 

 A^dac. convexus, n. sp., Gr. and St. 

 Aulac. crux, Elir. 

 Aulac. elegans, n. sp., Gr. and St. 

 Aulac. huttonii, n. sp., Gr. and St. 

 A^dac. janisckii, n, sp., Gr. and St. 

 Aidac. janischii, Gr. and St., var. abriqyta. 

 Aulac. margaritaceus, Ealfs. 



Aidac. margaritaceus, Ealfs, var. debyana, Gr. and St. 

 Aulac. margaritaceus, Ealfs, var. uudosa, Gr. and St. 

 Aulac. radiosus, n. sp., Gr. and St. 

 Aidac. rattrayii, n. sp., Gr. and St. 

 Aulac. soUitianus, Norm., var. nova-zealandica , n. var., Gr. 



and St. 

 Aulac. spectabUis, Grev. 

 Auliscus barbadensis, Grev. 

 A^d. ccelatus, Bail. 

 Aul. fencstratus, n. sp., Gr. and St. 

 Aui. grevillei, Jan. 

 Atd. hardmanianus , Grev. 

 Aul. inflatus, n. sp., Gr. and St. 

 A^d. lactinosus, n. sp., Gr. and St. 

 Aul. Uneatus, n. sp., Gr. and St. 

 A^d. notatus, Grev. 

 Aul. oamarueusis, n. sp., Gr. and St. 

 Aid. propinquus, n. sp., Gr. and St. 

 Aid. pndnosus, Bail. 

 Aid. (pruinosus, var. ?) confluens, Gruu. 

 Aul. punctatus, Grev. 

 Aul. punctatus. Bail., var. 

 Aul. racemosus, Ealfs. 

 Biddulphia chinensis, Grev. 

 B. dissipata, n. sp., Gr. and St. 

 B. elegantula, Grev. 

 B. (?) fossa, n. sp., Gr. and St. 

 jB. lata, n. sp., Gr. and St. 

 B. oamaruensis, n. sp., Gr. and St. 

 B. p)c.dalis, n. sp., Gr. and St. 

 B. piodagrosa, Grev., var. 

 B. imnctata, Grev. 

 B. reticulata, Eoper, forma trigona. 

 B. teyicra, u. sp.,Gr. and St. 



