708 Leuckart: Bericht üb. d. wissenschaftlichen Leistungen 



cyonidium disjunctum^ Ä. lineare. Das den Chilostomeen 

 zugehörige neue Gen. Lagenipora ist durch die Anwesenheit 

 einer kalkigen Umhüllung der Thierzellen zur Genüge 

 charakterisirt. 



Lagenipora n. gen. Colonies consisting of a immber of 

 Celles immersed in a common calcareous crust; zooecia decumbent, 

 contiguous, the front-wall solid; oral extremity produced, tubulär, 

 with a terminal orifice. 



In Part II (ibid. p. 520—532) erörtert Verf. zunächst 

 die Nothwendigkeit, bei der Systematik der Chilostomeen 

 eben so wohl die Gesammtform, wie den Bau der Thier- 

 zellen zu Grunde zu legen, worauf er dann alsbald die 

 Berechtigung dieses Principes durch Kevision der Mem- 

 braniporiden nachzuweisen versucht. Die Genera, die Verf. 

 in dieser Fam. — zumeist durch Auflösung der Gattung 

 Lepralia — aufstellt sind folgende: 



Memhraniporella Sm. Zoarium incrusting; zooecia closed in 

 front by a number of flattened calcareous ribs, more or less Conso- 

 lidated. Type Lepr. nitida Johnst. 



Cribrilina Gray. Zoarium incrusting; zooecia in a single layer, 

 contiguous, having the front more or less occupied by transverse 

 or radiating punctured furrows. Type L. rädiata Moll. 



Mucronella n. gen. Zoarium incrusting; zooecia usually 

 ovate, punctured round the base, with a suborbicular or semicir- 

 cular aperture, the inferior margin mucronate, a denticle within it; 

 avicularia generally wanting. Type L. Peachii Johnst. 



Microporella n. gen. Zoarium incrusting; zooecia with a 

 semicircular aperture, the lower margin straight and entire; a semi- 

 nulate or circular pore below it. Type L. ciliata Fall. 



Mastigophora n. gen. Zoarium incrusting; zooecia with a 

 semicircular orifice; the inferior margin straight, with a central 

 sinus; one or more lateral vibraculä. Type Lepr. Hyndmanni Johnst. 



Schizoporella n. gen. Zoarium incrusting, zooecia with a 

 semicircular or suborbicular orifice, the inferior margin with a cen- 

 tral sinus; avicularia usually lateral, sometimes median, with an 

 acute or rounded mandible. Type Lepralia unicornis Johnston. 



Lepralia Johnston (p. p.). Zoarium incrusting (or erect?); 

 zooecia with a semielliptical aperture, contracted on each side about 

 the middle or below it. Type L. Pallasiana. 



Escharella Sraitt. Zoarium incrusting or rising into foliaceous 



