W0RMS. MOLLUSC A. 49- Medufa. m 
iA . li.Jc convcybo,. 
, |o-angled. 
H.HiifphErical, wUhout tentacula; furnifhed with 4 mar- 
ginal tubes united into a prrrm. 
long, ftraight and flat. 
‘VT;w‘’'’rS; ^ 
. foo. ta di.n.c«r, *= »!«», b».«h 
about an inch and a half long. 
Heinirpboerical, without marginal arms : beneath 8 round 
Body tranfparent, ^ j^j^dle a fmall black crofs: 
X wtS^lul’e thicker than a goofe .uill at tne ttt- 
fertion, 
Hemifphxrk.!. without * 
cultrate arms aL. f. 107. n. 20. 
Inhabits the Red bea. / rofs, with a blue crols m 
.. *= .-.p- ^ 
Hemifphxrical, hyaline, with an opake white ring within 
/times interrupted : p. to?- «• 
Inhabits the Medhenavean. 
£<,4^ about 2 inches wide, t ul / P „„dulaie at the 
4, fublanceolatc, about an inch long, 
margin. 
5i;“dS'S'« P®r4i 'i with black CJ- 
tremitks: „ 
Fro* 
