Stations 81 (“Große Fischbucht”), 95 (Cape Agulhas), 100 (Francis Bay) and 101 (Algoa Bay). I obtained some imperfect shells, which I cannot relate with any known species; they belong to the group of T. perversa, but they are clearly different. The slightly brownish shells are high and conical, and have 11 slightly inflated whorls, the first whorl is rounded and sculptured by 3 cords, forming an obtuse apex, while the following whorls have axial ribs which bear tubercles at the intersection with the spiral cords; at the suture a further smooth thread is visible. The last whorl has a big straight siphonal canal and with 4 cords on the base, the last whorl has a blunt angle between the lower and upper part; aperture rather large, diamond-shaped. Height 8 mm, diameter 2.25 mm.

Diagnosis
Lectotype height 8 mm. Shell conical, with rather flat whorls. Teleoconch of nine whorls, which have three tubercled spiral cords, present since the first teleoconch whorl. A fourth suprasutural smooth cord is also present. The base has five smooth spiral cords. The peristome is not complete in the type material, but it does not seem to bear bifurcated spiral cords. Paucispiral large apex of two whorls with three large spiral cords which are initially smooth and then become tubercled. Colour brownish, with the first spiral cord on whorls paler.

Remarks
The sample from station 81 contains specimens which are broken or juvenile and difficult to assign to any species. At least one specimen is certainly not T. capensis, because it bears a planktotrophic apex. Station 81 is probably located in Agulhas Bank and not in Angola as the geographic coordinates would suggest (Kilburn 1996) (see Materials and methods).

Shell very elongate-ovate, white. Nuclear whorls decollated Postnuclear whorls flattened, the first two marked by two strong spiral cords, of which (lie first is at the summit, and the second a little nearer the suture than to the one at the summit. Beginning with the second whorl, a slender spiral cord appears between the other two, which increases rapidly in size obtaining almost the strength of the other two on the last volution. In addition to these spiral cords, the whorls are marked with well rounded, almost vertical, straight, axial ribs, of which 14 occur upon the first, 18 upon the second to fifth, 20 upon the sixth, and 22 upon the penultimate turn. The junctions of the axial ribs and the spiral cord form low tubercules, while the spaces inclosed between them appear as deep squarish pits. Sutures strongly constricted. Periphery of the last whorl angulated, marked by a strong spiral cord which is feebly tuberculated. Base moderately long, the posterior half provided with two equal and equally spaced, spiral cords, while the anterior portion appears as a strongly tumid area. Aperture decidedly irregular, strongly channeled anteriorly; posterior angle decidedly channeled; outer lip thin, decidedly curved and very strongly produced anteriorly; the portion facing the columella is pinched in and so curved as to almost touch the columella, leaving only a very narrow slit between it and the columella; parietal wall covered with a very thick callus.
The type and another specimen, Cat. No. 1S7044, U.S.N.M., were collected at Port Alfred (Coll. No. 582). The type has eight postnuclear whorls, and measures: Length, 5.1 mm.; diameter, 2 mm.