138 ACARUS, ACTINA, 



telaris, (common mite,) greenish -yellow, with a 

 brown spot on each side of the abdomen. Small. 

 On hothouse and other sheltered plants. 



destructor, (museum-thief,) ovate ; tail with long 

 bristles ; feet with one each. 

 See MS. P. 



4 6. ACIPENCER. Spec. 5. 



$}urio, (sturgeon,) nose obtuse, having four cirri 

 near the tip; nostrils near the eyes, eyes small; 

 mouth beneath, some distance back of the end 

 of the nose, its length and breadth equal ; body 

 elongated, pentagonal, flat beneath, covered 

 above with rows of bony tubercles. 



MlthenuSy (sterlet,) nose strait, subulate, lips en- 

 tire, cirri near the mouth. Nose four times as 

 long as the diameter of the mouth. 



stellatus, (koster,) nose spatulate, somewhat re- 

 curved ; cirri near the mouth, lips entire. Nose 

 six times as long as the transverse diameter of 

 the mouth. 

 See MS. P. 



3 3. ACROCHORDUS. Spec. i. 

 javensis, (warted or granulated snake.) back black, 

 belly whitish with black spots ; teeth in double 

 rows. 



See MS. P. 



12 1. ACTINA. Spec. 23. 



bellis, (sea-daisie,) body warty ; head resembling 

 the calyx of a flower ; tentacula retractile, va- 

 riegated. 



calendula, (sea- marigold,) stem subturbinate : 

 disk surrounded by petal-form tentacula OK 

 rays. 

 See MS. P. 



