398 Lenckart: Bericht üb. d. Leistungen in d. Naturgeschichte 



Gen. Scruf ocellaria v. Ben. Cells rhomboidal, with a si. 

 nu3 on the outcr and hinder aspect; each furnishod with a scssile 

 avicularium at the upper and outer angle, and with a vihraculum 

 placed in the sinus on the ouler and lower part bchind. Aperture 

 ovale or subrotund , spinous abovc, with or without a pedunculate 

 operculum. Cells biserial and numerous in each internode. 



S. cernicornis n. sp." Cumberlands-Ins. — Sc. dindema n. sp.* 

 Moreton-Bay. — Sc. scruyea Bush. Engl. Kflste. — Sc. Macnndrci 

 n. sp. Span. Küste. — Sc. cyclostomn n sp.* Bass-Slr. — Sc. fcrox 

 n. sp.* £bendah. — Sc. scruposa (Fall.) v. Ben. Europ. Küste. 



Gen. Canda Lamx. Cells rhomboidal, sinuated on the outer 

 side for the lodgmenl df a vibraculum. No avicularium on the uppcr 

 and outer angle, 



C. arachnoides Lamx. Südsee. — C. reptans (L.) Bush. Engli- 

 sche Küste. 



Gen. Emma Gray. Cells in pairs or triplets. Opening more 

 or less oblique, subtriangular, partially filled up by a granulaVed cal. 

 carecus expansion. A sessile avicularium (sometimes absent) on the 

 outer sidc belovv the level of the opening. 



E. crystallina G. — E. tricellala n. sp.^ Beide in der Bass-Str. 



§ Inarticulata s. Contitiua. 

 §§ Uniserialaria. 



Fam. Scrupariadae. (Cells uniserial, Junciions rigid or of 

 the same consistence as the cells. Polyzoary usually loosely adnate.) 



Gen. Scruparia Ok. Cells decunibent ; aperture oblique, 

 subterminal. Brauches given olf from the front of a cell below the 

 aperture. 



Sc. chelala (L.) Bush. Europäische und Austral. Küsten. 



Gen. H ippo tlioa Lamx. Cells decumbent, adherent; branches 

 given off from the sides of the cells. 



//. calemilaria Johnst. Europ. Küsten. — //. ditaricata Lamx. 

 Europ. Küsten. — H. palagonica n. sp. Patagonien. 



Gen. Aetea Lamx. Cells tubulär, er^ct, scattered, rising from 

 a creeping Gstular fibre adnate to a foreign base. Aperture terminal 

 or sublerminal. 



Act. anijuina (L.) Lamx. Europäische Küste u. s. w. — Act 

 dilalala n. sp.* Torres-Str. — Ad. ligulala n. sp. Patagonien. — Ael. 

 truncata n. sp. Küste Arran. 



Gen. Beania Johnst. Polyzoary confcrvoid , subcorneous or 

 calcarecus, Cells arising one from anothcr by a slendcr filiform tube 

 given off from the lower part of the cell, which is open in front; 

 the edges of the opening furnished with hollow spinous processes 



