135 
VOLUTA ambigua.* 
TAB. CCCXCIX.— Fig. 1. 
Spec. Char. Ovato-elongated, acute, costated, 
transversely sulcated ; costae angular, 
above ; spire rough ; columella with three 
plaits ; lip plaited within, its edge granu- 
lated, aperture narrow above. 
Syn. Strombus ambiguus, Brander 69. 
Rather longer shaped than the young of Y. Luctator, 
in consequence of the narrowness of the aperture at the 
upper part ; the spire is made rough by a row of small 
imperfect spines upoh the upper edges of the whorls 
and the angles upon the tops of the costae. 
A distinct and easily recognized shell, although very 
like the last. It abounds in the Cliffat Barton. Brander’s 
most excellent figure is from a younger individual than 
the one purposely chosen for the present table, and has 
consequently the parts sharper defined. It is not suf- 
ficiently clear that Lamarck’s V. bicorona is the same 
species ; I have never met with the true V. ambigua from 
France. 
YOLUTA nodosa. 
TAB. CCCXCIX.— -fig. 2. 
Spec. Char. Ovate pointed, obscurely cos- 
tated, transversely sulcated ; spire with two 
rows of nodiform spines; columella with 
three folds ; lip striated within. 
The very blunt short spines, deep and numerous sulci, 
and oval form at once distinguish this Volute. 
Discovered above a twelvemonth ago, by Miss Be- 
minster in the Barton Cliff; the specimen figured enrich- 
es the cabinet of the Rev. T. Cooke ; one sent by Miss 
Beminster is not quite so ventricose ; in its young state 
the knobs are more conspicuous, particularly the row of 
smaller ones upon the edges of the whorls. 
* Vo lata ambigua Mia. Conch, t. 115. 5. is Murex suspensus of Brander, 
see its Sp. Char. p. 137. 
