236 SUBCULA. 
Linneus; the usual shouldered form is also the P. scalarina, 
Lam. 
P. RECURVIROSTRIS, Marrat (unfigured). W. Africa. 
No dimensions are given. ? — P. aculeiformis. 
Genus SURCULA, H. and A. Adams, 1853. 
With long canal. 
S. macuLosa, Sowerby. PI. 5, fig. 57. 
Smooth, or with light revolving striz, the shoulder of the 
whorls angulated and defined by a row of tubercles; flesh- 
colored, light brown, or light purplish, with chestnut macula- 
tions. L. 42, diam. 13 mill. 
West Columbia to Gulf of California. 
S. BRUNNEOMACULATA, Sowb. PI. 10, fig. 71. 
Shell stout, with a more turreted spire and more angulate 
periphery and stronger nodules than S. maculosa, the whorls 
also more distinctly spirally striate; color yellowish brown with 
chestnut maculations and interrupted bands. 
? California (Frick). 
Notwithstanding the differences above pointed out, the species 
is evidently so closely allied to S. maculosa, that I have hesitated 
to keep it separate. I scarcely think that Weinkauff’s figure 
represents the species. 
S. AUSTRALIS, Roissy. PI. 5, fig. 58; Pl. 2, fig. 9. 
Shell yellowish white, encircled by corded orange-brown ribs, 
with several intermediate strie; outer lip broadly rounded 
above into the rather shallow sinus. L. 100, diam. 28 mill. 
China Sea, Philippines. 
S. turris, Val. (fig. 9), is a synonym, 
S. arncuaTA, Reeve. PI. 5, fig. 61. 
Shell arcuately fusiform, thin, inflated, rather transparent ; 
whorls lined and sharply keeled round the middle, keel painted 
with regular brown spots; lip rounded, separated from the last 
whorl by a broad sinus; canal slender, curved, equaling the 
length of the spire. L. 43, diam. 13 mill. 
Coast of Veragua, Central America (Hinds). 
