484 RADIATA. FISTULIDtE. Mulleria. 



Gen. VIII. MULLERIA. — This genus, contemplated by 

 Cuvier, for the reception of the Holotliuriajusus of Zool. 

 Dan. X. f. 5, 6, and H. papillosa, ib. cviii. f. 5, I have 

 presumed to inscribe to the memory of one of the most 

 acute, industrious, and successful investigators of the tribe 

 to which it belongs. 



16. M. digitata. — Tentacuia twelve, ending in four obtuse 

 branches. 



HoL dig. MonU liinn. Trans, xi. p. 22, tab. iv. f. 6. — Coast of Devon. 

 " Body long, cylindrical, covered with minute papillae^ of*a yellowish- 

 white colour, marked with small spots of red-orange closely disposed, and in 

 many parts confluent." The body contracts by numerous strictures. The 

 discoverer of this species was inclined to refer it to the H. inhcBrens of the 

 Zool. Dan. tab. xxxi. 1-7, to which, in general appearance, it bears consider- 

 able resemblance ; but he could not detect the longitudinal avenues of pa- 

 pillae, which are very distinct in Muller's species. 



