which it belongs,—a kind of eyidence, however, which this instance 
shows must rpecatiag with great caution, and not at best 
possessing much Ww ight. 
ra | 
y allied-to S. australis, Dunc., 
of Muddy Creek and rok a but differing in the absence of 
costze and the form of the base. The arrangement of the septa 
is near to S. australis, in very many peculiarities but the base 
is very different. The coste and twelve of the septa unite with 
the columella, but in S. variolaris only ten. n the young , 
specimens the exterior is quite covered with fine he, Ly 
tions, and there is no laminary columella, but on se 
reticulated mass. From this we must conclude that the Betis 
is not essential or does not rise from the base. 
Genus Sminorrocuus. Milne Edward and Haime, 1851. 
Corallum, simple, straight, prin aes free and without atrace of 
adherence. No columella, septa finely granular, slightly exsert 
Val 
jot 
jo) 
2 
and touching by their inner edge. nake a ace simple 
Pp 
S bY 
cost distinct to the base. ( late IT. St 92 2 Zand f 
All the specimens known to Edwd. H, ee to the 
are not united, end: there are fewer cy cles than the ee forms. 
SMitoTRocHUS YA w.s. Corallum, very small, spear- 
pre 
tuberosity which tapers off slightly above, but is produced into 
a very finely pointed margin at each side of the base. Coste 
‘corresponding to the septa, fine, straight, mipieen at the cali- 
cular margin, becoming fainter below, disappearing about the 
centre, and finally reappearing at the base. Calice amet nar- 
rowly elliptical, rounded and depressed at the ends. a in six 
spa eyela, but those of the 4th and 5 oth orders 
he two central systems, granular, not much exsert, 
pitas ek the three first nearly equal, not united at their inner 
edge, and the place ofthe columella represented by a conspicuous 
central vacuity. Alt., 5; maj. axis, 3; min.,14 millim. Very rare. 
Sub. Fam. CaryoOPHYLLIne. 
Ist Group. TrocnocyatHace® (many circles of pali). 
Genus Deurocyatuus. Mil. Ed. hei 1848. 
Corallum, simple, conical, free, no trace 
of adherence 
saan circular, and shallow, columella alias ina rounded ae - 
a 
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, 
4 
a 
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