BY R. VON LENDENFELD, PH.D. 1141 



published. Every educated man in the world admires Haeckel's 

 genius, but that his mental powers would be considered sufficient 

 to enable him to know more than six years beforehand what new 

 forms nay be discovered, can only be accounted for by a degree 

 of admiration which one would not expect to find in so cautious 

 a scientist as Carter. 



21. GENUS. TEICHONELLA. Carter (1.) 



Foliate Teichonidse. I accept this genus preliminarily, it is 

 very doubtful weather the two species described by Carter belong 

 to one and the same genus and in what relationship they are to 

 the species of Teichonidse described much more accurately by 

 Polejaeff as representing a new genus. 



50. SPECIES. TEICHONELLA PROLIFERA. Carter (2). 



The Sponge consists of a foliate lamina about 4 mm., in thick- 

 ness which is much folded and may extend to 60 mm., and more 

 forming a complicated folded mass. The surface of the main 

 lamina is uneven bearing sometimes also secondary laminae of 

 varying size. Oscula amassed on the margin of the lamina 

 varying in diameter the largest measuring 0*54 mm. These 

 Oscula are nearly in a line and 3 mm,, apart. Oscula tubes 

 slightly narrower than the Osculum. Inhalent pores scattered 

 thickly, small. The Anatomy of this Sponge is unknown, 

 so that no decision about its relationship can be arrived at. 



Spicules. The skeleton consists of large Quadriradiates, small 

 Quadriradiates and large and small Triradiates. Acerate spicules 

 are absent. Triradirates regular, rays straight and pointed mea- 

 suring - 13 mm., in length in the smaller kind and 0*52 mm., in 

 the larger. The smaller triradiate spicules are more numerous 

 than the others. Gastral Quadriradiates with a centripetal differ- 

 tiated protruding ray curved and smaller than the other three ; of 

 the same size as the smaller Triradiates. Large Quadriradiates 



(1.) H. T. Carter. L.c, p. 35. 



(2.) H. T. Carter. L.c, p. 35, pi. II., figs. 7-5. 



