238 SURCULA. 
by coarse riblets and striz; interior of outer lip generally 
showing revolving striz ; yellowish brown, chestnut or chocolate, 
under a light olivaceous or brownish epidermis, the projecting 
portions of lighter color, L. 62, diam. 26 mill. 
Panama to Gulf of California. 
P. funiculata, Val. (fig. 70), and P. duplicata, Sowb. (fig. 77), 
are synonyms. The species is a very common one in the Gulf 
of California and at Mazatlan. Fig. 69, which represents the 
typical olivacea, at first sight would be supposed to be distinct 
from funiculata (fig. 70), and to approach the next species. 
The shoulder is very narrow, so that the angle is not prominent. 
I figure an intermediate form from Weinkauff (Pl. 34, fig. 3), 
which he calls S. olivacea. 
S. TUBERCULIFERA, Brod. and Sowb. PI. 5, fig. 68; Pl. 10, fig. 60. 
Whorls well rounded with strong rounded ribs, nodules forming 
a single row on each whorl, with strong revolving striz ; yellowish 
brown, darker banded above and below the nodules, with some 
additional brown revolving lines below the lowest band. 
L. 63, diam. 22 mill. 
Gulf of California. 
Described from a specimen not fully grown (Pl. 5, fig. 68). 
Through the kindness of Mr. R. E. C. Stearns I am enabled to 
give a figure of an adult of this fine species (PI. 10, fig. 60). I 
have a specimen before me uniform yellowish brown, without 
bands. 
S. UNDATIRUGA, Bivona. PI. 5, figs. 11, 72; Pl.-6, figss73,-14- 
Whorls angulated in the middle and nodulous on the angle, 
above it the surface is smooth, below the nodules are continued 
as flexuose wrinkles or ribs, becoming evanescent towards the 
base of the aperture; yellowish brown, with usually one or two 
darker bands. IL. 50, diam. 16 mill. 
Sicily, Algiers, Spain, Teneriffe, W. Coast of Africa. 
This is the S. balteata, Beck, of Kiener (fig. 72), S. corrugata, 
Kiener (fig. 74), and S. tenuis, Gray (fig. 73). Monterosato 
considers corrugata a synonymn, but he separates balteata and 
tenuis as a variety under the name of similis, Bivona. 
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