2t VI Leuckart: Bericht üb. d. Leist. in d. Naturgeschichte 



well developed, united to those of the preceeding cycle, which rise 

 up in the form of prominent paliform lobes, beyond which the 

 central region of the cell is deep. Columella very porous, its sur- 

 face papillose. Walls very porous, destitute of epitheca, with scar- 

 cely distinct costae, but with series of'rough granules. (Entpricht 

 durch seineWachsthumsverhältnisse dem Gen. Astrangia in der Gruppe 

 der Oculinaceen.) 



Subord. Oculinaea Verr. wird folgendermassen 

 charakterisirt: 



Corallum simple or Compound , encrusting or branched, of 

 firm tcxture, with irnperforate solid walls and septa. Cells gena- 

 rally small, tubulär. Polyps when expanded rising above the cell or 

 long exsert, the mouth protuding, the tentacles 10 — 48, some times 

 more, elongated. the tips usually, if not always, swollen or capitate, 

 their surface coyered with small wart-like Clusters of urticating cells. 

 The Compound species increase by basal and lateral budding, and 

 there is tendency to form hard compact corals, the coenenchyme 

 being, when present, very compact, the walls are often thickened 

 or the cells may be partially filled up and oblitterated (as in Oculi- 

 nidae. some Stylasteridae etc.). The transverse plates within the 

 cells are usually few and distant, and may be entirely wanting; in 

 some cases they are coincident in all the interseptal Spaces, so as 

 to form continuous tranverse plates or septa (as in Pocilloporidae). 

 The septa of the first and second cycles, at least, have the edge 

 entire or nearly so, often . all the septa are entire. The exterior 

 of the walls is generally more or less costate, sommetimes finely 

 granulous or spiculose, but never strongly spinöse. 



Hieher als Hauptfamilien die Stylasteriden, Oculini- 

 den, Pocilloporiden, Stylophoriden, ?Styliniden, Astrangi- 

 den , Caryophylliden, von denen aber nur vier an der 

 Westamerikanischeu Küste Vertretung linden : die Sty- 

 lasteriden durch zwei Arten des Gen. Allopora Ehr., 

 unter denen A. venusia n. (— A. californica Pourtal.), 

 die Pocilloporiden durch zwei Arten des Gen. Pocil- 

 lopora (von denen aber eine P. capitata Verr. dreierlei 

 Varietäten aufweist), die Astrangiden durch 9 Arten, die 

 Caryophylliden durch 4 (die Turbinoliden durch 1). Die 

 Astrangiden gehören meist zu dein Gen. Astrangia, das 

 dabei durch A. Pedersenii und A. (Coenangia Verr.) con- 

 ferta bereichert wird — ausserdem durch A. palifera aus 

 Ceylon, die aus Versehen mit abgebildet wurde. — Unter 



