FROM THE NEIGHBOURHOOD OF LOBITO BAY. 587 



porite occupies a triangular instead of a nearly circular depression ; it differs markedly 

 from that in the apical disc shown by de Loriol in his pi. vi, fig. 2d ; but in his 

 figure, pi. vi, fig. 4, there are faint indications of a smaller depression below the 

 genital pore. Were it not for the difference in horizon I should have been disposed 



Salenia dombeeusis, Lor., var. triangularis, n. var. 



to attach little value to this character ; but it may be worth while to separate the 

 new Salenia as a distinct variety, named, from the shape of the madreporite, var. 

 triangularis. The apical disc of the Lobito specimen is shown in the figure. 



4. Cottaldia, allied to Benettiie, Konig : diameter, 18 mm. ; height, 13^ mm. 

 Found in the Ejoiaster bed on the First Plateau, south-west from Hanha. This 

 specimen is too covered with matrix for description. 



