205 



sinuated or lobed at the margins, which are covered with close re- 

 tractile polypes on each of their sides. All parts of the coral stud- 

 ded with calcareous cylindrical spicules, which have four raore or 

 less largo prominent separate transverse plates, which are largest 

 in the middle and more or less small or rudimentary at the ends. 

 Sp. n. /, cristata. 



Ebendas. (p. 483) liefert Gray eine Beschreibung 

 der bisher nur von Valenciennes beobachteten Thoiia- 

 rella antarctica von den Falklands-Inseln, die, nach einem 

 besser erhaltenen Exemplare entworfen, mehrfach von den 

 altern Angaben abweicht. 



In den „Notes on Corals from the south- and antarctic 

 seas" veröffentlicht Gray die Beschreibung folgender meist 

 neuer Arten (Proceed. zoolog. Soc. 1872. p. 744—747 PI. 

 LXII — LXIV) : Mopsella australis, Fannyella {n. gen.) 

 Rossii, Errina fissurata, Tubiäipora nivalis, Thouarella ant- 

 arctica Val., Porella antarctica Gr., Hookerella pulchella 

 Gr., Sydella (n. gen.) australis. Zur Charakteristik der 

 neuen Geschlechter reproduciren wir hier deren Diagnose. 



Fannyella Gr. Coral slightly furkately branched; branches 

 club-shaped, enlarging upwards and then rapidely contracting at the 

 tip ; polypiferous cells many, in numerous close concentric rings, 

 forming regulär whorls round the branches, the cells oblong, cylin- 

 drical, contracted at the base and each covered with six longitudinal 

 series of transverse oblong hexangular scales, truncated at top and 

 closed with elongated more or less acute scales, converging to the 

 point, when the animal is withdrawn; axis covered with small scales. 



Sydella Gr. Coral erect (?), straight, cylindrical, rather tape- 

 ring, covered with cylindrical cells, tapering at the end and placed 

 in four rather irregulär longitudinal series, covered externally with 

 red fusiform spicules, iilaced very close together in a longitudinal 

 direction. Polypes completely retractile, leaving a small rounded 

 end to the cell when contracted. 



(Fortsetzung folgt.) 



Üniversitäts-Buchdruckerei von Carl Georgi iu Bonn, 



