240 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
ture 42°; and 3393, in 1020 fathoms, mud, temperature 369.8, both in the Gulf of 
Panama. 
The species is more conical than 5. eylindrellus, the apex wider, more blunt, and 
the spire less sunken. The sculpture is stronger and relatively coarser in the 
young shell above described. A fragment of an adult measures about 30 mm. in 
length and 15 mm. in diameter; on it the sculpture is nearly obsolete; the loss of 
the periostracum may account for part of the difference, but that there was origi- 
nally a considerable disparity is certain. 
Scaphander decapitatus Darr, n. sp. 
Shell subeylindric, anterior and posterior ends about equally rounded, white, 
covered with a pale yellowish, thin, polished periostracum ; apex with a small 
dimple, hardly a perforation, the edge of the aperture coiled around but hardly 
beyond the margin of the apex ; axial sculpture only of faint lines of growth; the 
posterior fourth of the shell with numerous close, fine spiral striae, but no punc- 
tations; the middle part is without spirals ; the anterior part with a few sparse, 
irregularly disposed spiral striae and numerous very faint, almost microscopic 
striulae ; aperture as long as the shell, not produced or channelled behind ; outer 
lip thin, nearly straight; body with a faintly granular, white, thin wash of callus ; 
pillar thin, short, very obliquely attenuated. Lon, of shell, 15; max. diam., 8 mm. 
U.S. S. “ Albatross,” station 3683, in Mid Pacific, N. latitude 99 57' W., 
longitude 1379 47', in 2690 fathoms, radiolarian ooze, bottom temperature about 
35° F. U.S. N. Mus. 110,746. 
From the fact that the outer lip is not channelled or produced behind the apex 
of the whorls, this species has somewhat the aspect.of a Cylichnium, The absence 
of punctation is also unusual; but the shell has more the look of a Seaphander 
than anything else, and, in the lack of any knowledge of the soft parts, more exact 
reference to its place in the system must at present be deferred. 
Sabatia DELLARDI. 
SABATINA DALL, nov. 
The callosity on the body of the species of this subgenus in most if not all cases 
does not form a “fold.” It is an amorphous mass, sometimes granular or smooth, 
but occasionally with a tubercular surface. The typical species, if correctly fig- 
ured, does seem to have the callus produced into the interior, but the recent species 
without exception differ from Bellardi’s fossil, not only in the character of the 
callus, but also in their globose, instead of pyriform, shell. For the globose recent 
species, therefore, I propose the name Sabatina with S. planetica Dall, as type. 
They have an animal capable of retiring wholly into the shell, and gastroliths 
exactly of the type found in Seaphander lignarius. A large foraminifer was found 
in the stomach of the following species. 
