. Echinodermata . Fig. 7. Calcareous deposits from the tentacles of Benthodytes gigantea Verr. Benthodytes typica Theel. (PI. 3 fig. 6, 7). Benthodytes typica Theel, Holothurioidea 1, Rep. Sci. Res. "Challenger" Zool., vol. 4 part 13, 1881, p. 103, tab. 27 fig. 7, tab. 35 fig. 4, tab. 38 fig. 5. 8/e. Stat. 53, 34" 59' W., 33: V W., 2615—2865 m., yellow hard clayey mud. One specimen, whose dimensions were as follows; length 94 mm., breadth in front 21 mm., in the middle 39 mm., behind 32 mm. As may be seen from pi. 3 figs. 6 & 7 the animal has an elongated body with a greates
. Echinodermata . Fig. 7. Calcareous deposits from the tentacles of Benthodytes gigantea Verr. Benthodytes typica Theel. (PI. 3 fig. 6, 7). Benthodytes typica Theel, Holothurioidea 1, Rep. Sci. Res. "Challenger" Zool., vol. 4 part 13, 1881, p. 103, tab. 27 fig. 7, tab. 35 fig. 4, tab. 38 fig. 5. 8/e. Stat. 53, 34" 59' W., 33: V W., 2615—2865 m., yellow hard clayey mud. One specimen, whose dimensions were as follows; length 94 mm., breadth in front 21 mm., in the middle 39 mm., behind 32 mm. As may be seen from pi. 3 figs. 6 & 7 the animal has an elongated body with a greatest breadth of about 40 per cent of its length. It was rounded in front and straight cut behind with an incision at the anus. I ought to mention that the animal was slightly mutilated a little below the mouth. It is therefore possible that it had been much contracted, whereby the border between fore- part and body had become a little too distinct. The brim was narrow in front, but broad along the sides of the body. Fig. 8. Spicules from the body of Benthodytes typica Theel. There were 20 tentacles. The middle ambulacrum of the trivium had about 30 papilla? in each row. The dorsal ambulacra have each 5 or possibly 6 small papillae. The body was scantily covered with thorny calcareous rods (fig. 8). The rods of the ventral surface seem also a little more thorny. The colour of the fore part was a deep, dark violet which extended a little over on the dorsal surface of the body. The middle part of the trivium, as well as the canals connected with the ambulacral systems, were of the same colour, which in the case of the canals, could be distinctly seen through the brim. The dorsal surface was bluish transparent. The disc of the tentacles was yellowish brown. The specimen contained well developed eggs, with a diameter of mm. The specimen agreed in most of its characteristic with Benthodytes typica but differed from it in the form. The typical B. typica is oval, while the specimen
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscienti, bookyear1921
