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Stichocorys delmontensis (Campbell and Clark, 1944)

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Shell not especially large, rather stout (1.6-2.4 diameters of cylinder length); cephalis knoblike, distinct, with much lateral flattening, and with a short, sometimes curved, or straight, apical horn, cervix truncate and constricted; thorax distinct, truncate apically, subhemispherical, its basal diameter exceeding distal diameter, and marked by an internal transverse septum; abdominal joints three, clearly limited by lumbar constrictions and transverse septa, uppermost joint subhemisoherical like thorax and more or less continued in contour with it, these two regions forming, as a whole, a cone (45°), its sides strongly bulged, its length approximately 0.29 total length, and its basal diameter 1.37 upper diameters, second and third joints together subcylindrical, second one about same length as first, and third one shorter, its distal end inturned with a somewhat constricted mouth with short, projecting discrete, spinelike denticles (mouth commonly torn); wall uniformly thin, gray, pores lacking on cephalis, on thorax approximately 40, well scattered, in subhexagonal areas with raised corners, pores of abdomen larger tan those of thorax, well separated, scattered, all pores subcircular. Length, total, 200µ; diameter of cylindrical abdomen, 70µ, of pores, 8.8µ.
Rare individuals have first two shell-segments together barrel-like in shape.
(Campbell and Clark) 1944











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