162 CLASS III.— ORDER I. 



lindrical and nearly tubulous, fixed through their 

 whole length. 



Var. C. Spatulated, and very thick. 



Var. D. Surface jagged, and proliferous. 



Australasia ; near Kangaroo Island. 



FAN-SHAPED. 



47. Sv o^Gi A Jlabelliformis. Upright, pediculated^ 

 brown or blackish; fibres stiff, reticulated, and in- 

 crusted. 



Indian and Australasian seas. 



FEATHERED. 



48. Spongia pluma. Pediculated, finely fibrous 

 as if feathered ; transparent, and a little flattened. 



Southern seas. 



THISTLE. 



49. Spongia carduus. Pediculated, fan-shaped, and 

 uneven ; surface incrusted, and having thin conti- 

 nuous wrinkles or folds, stuck with a few sharp 

 points. 



Southern seas. 



CLOTH-LIKE. 



50. Spongia pannea. Upright, pediculated, and 

 very thick, flattened and fan-shaped ; texture fibrous 

 and reticulated, like cloth ; upper border osculated. 



Var. B. Very thick, compressed, and round. 

 Southern seas. 



CLEFT. 



51. Spongia Jissurata, Pediculated, flat, and thin ; 



