. ov 1 Text-fig. 64. Eugyra kerguelenensis Herdman (St. 1941): Gonad. External appearance. The largest specimens are those from the Patagonian Shelf, which reach a greatest diameter of 20 mm. These equal in size the largest yet found, which were described from Kerguelen by Kott (1954). The specimens from South Georgia in the 'Discovery' collections range from 8 to 18 mm. In all specimens the surface of the body has a coat, sometimes not very thick, of moderately long, unbranched hairs to which sand and mud adheres. The body is ovoid to globular. There is generally a sunken area round the sipho
. ov 1 Text-fig. 64. Eugyra kerguelenensis Herdman (St. 1941): Gonad. External appearance. The largest specimens are those from the Patagonian Shelf, which reach a greatest diameter of 20 mm. These equal in size the largest yet found, which were described from Kerguelen by Kott (1954). The specimens from South Georgia in the 'Discovery' collections range from 8 to 18 mm. In all specimens the surface of the body has a coat, sometimes not very thick, of moderately long, unbranched hairs to which sand and mud adheres. The body is ovoid to globular. There is generally a sunken area round the siphons, sometimes with four grooves running from its corners as described by van Name (1945). Body wall. Muscles, both longitudinal and circular, are best developed on and near the siphons. There is, in addition, a narrow row of transverse fibres overlying the endostyle, as already described by other authors, but I have found this band to continue in some specimens across the dorsal part of the body and down its posterior surface. Tentacles. The oral tentacles usually number only ten to thirteen, even in quite large specimens. Dorsal tubercle. Van Name (1945) shows and describes the dorsal tubercle as having an 'almost completely closed ring-like opening', but the ' Discovery' animals have a more nearly C-shaped or crescentic slit. Branchial sac. The branchial sac does not differ from previous accounts.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
