Discovery reports (1936) Discovery reports discoveryreports12inst Year: 1936 OPHIOLEPIDAE 319 As usual in this species the specimens are either covered with a sponge or with Foraminifera. To the specimens from Bouvet Island (St. 456) a number of a Folliculina are attached, both on the upper and under side of the disk and on the arms. The species has separate sexes and is evidently not viviparous. There are two to four gonads on each side of the bursal slits; the eggs are rather numerous, of moderate size, ca. 0-3 mm. diameter, all ripening at the same time. The relatively large size of the e
Discovery reports (1936) Discovery reports discoveryreports12inst Year: 1936 OPHIOLEPIDAE 319 As usual in this species the specimens are either covered with a sponge or with Foraminifera. To the specimens from Bouvet Island (St. 456) a number of a Folliculina are attached, both on the upper and under side of the disk and on the arms. The species has separate sexes and is evidently not viviparous. There are two to four gonads on each side of the bursal slits; the eggs are rather numerous, of moderate size, ca. 0-3 mm. diameter, all ripening at the same time. The relatively large size of the eggs rather suggests direct development, not through a typical Ophiopliiteus larva. This, of course, is a mere suggestion. Ophiurolepis brevirima, (Plate VIII, figs. 8-13) St. 170. 23. ii. 27. Off Cape Bowles, Clarence Island, 342 m. Several specimens. St. 172. 26. ii. 27. Off Deception Island, South Shetlands, 525 m. i specimen. St. 175. 2. iii. 27. Bransfield Strait, South Shetlands, 200 m. Several specimens. Diameter of disk up to ca. 20 mm. Arms at most slightly exceeding four times the diameter of disk, but often scarcely as much as three times the diameter. In larger specimens the disk is usually rather conspicuously elevated, rising from the edge at an angle of ca. 45°; but the middle part of the disk is flattened. The primary Fig. 37. ophiurolepis brevirima, Part of oral side {a) and dorsal side (h). x6. plates are not conspicuous, or even at all discernible, except in the young specimens, and even in these latter they are relatively small. All the plates of the dorsal side of the disk, excepting the radial shields, rise into a low knob surrounded by concentric rings. The radial shields are on the contrary smooth, and even usually somewhat sunken in the middle; they are oval, about half the length of the disk radius, separated by a column of plates, the innermost one of which is generally the most conspicuous. In the ventral interradii the most conspicuou
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