730 Leuckart: Bericht üb. d. wissenschaftlichen Leistungen 



Distichopora Lam. Corallum branching flabelliförm with bran- 

 ches usually flatened in the plane of a flabellum; composed of very 

 compact coenenchym. Pores confined to narrow lines or rows runn- 

 ing aloug the exact centres or edges of the sides of the branches, 

 geuerally absent on their faces, except as occasional abnormalities 

 or rudimentary branches budding in a direction out of the plane of 

 the flabellum. The lines of pores composed of three rows, a central 

 row of larger gastropores with circular or oval niouths; and a row 

 on each side of this of smaller dactylopores, sometimes very minute, 

 often slit-like in aperture , the length of the slit being directed at 

 right angles to the line of the row. Pores very deep, prolonged in 

 curved lines side by side in the plane of the flabellum inwards 

 and downwards towards the bases of the branches; forming 

 thus throughout the flabellum a thin continuous tract of fragile tu- 

 bulate tissue, in which the successively-developed curved pore-tubes 

 stand out fanwise, separating from one another the compact masses 

 of coenenchym forming the opposito faces of the branches. The 

 branches may therefore be readily split iuto two halves along this 

 tubulär tract. Older gasteropores with immeusely long filiform styles. 

 Styles much shorter in the younger gastropores. Dactylopores de- 

 void of styles. Ampullae sometimes in one, sometimes in both faces 

 of tho flabellum , prominent and often forming conflueut masses. 

 Soft strukture unknown. 



Die hier angezogenen Diagnosen sind, soweit sie die 

 Unterordnung Hydrocorallinae und die dazu gehörigen zwei 

 Familien betreffen, vonMoseley unter dem Titel „on the 

 hydroid story corals" auch in dem zoologischen Anzeiger 

 Th. I. S. 336—338 zum Abdrucke gebracht. 



Distichopora contorta n. sp. Mex. Meerbusen, Pour- 

 tales 1. c. p. 210. 



Studer zählt unter den von der Gazelle gesammelten 

 Oculiden gleichfalls eine Anzahl hieher gehörenden Formen 

 auf (Berlin. Monatsber. 1877. S. G34— 637). Neu darunter 

 sind Stylaster laevis Three -kings IsL, St. verrucosus Still. 

 Oc, St. ohliquus Three-kings Isl. 



Ebenso erwähnt Lindström in seinen später noch 

 weiter anzuziehenden Contributions to the actinology (kgl. 

 vetensk. acad. handl. Bd. XIV) einer Cryptolielia virginis 

 n. aus dem Atlantischen Ocean. 



Wyville Thomson veröffentlicht in dem schon viel- 

 fach citirten Reisewerke (Atlantic T. I. Fig. 65) eine schöne 



