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4. Cucumaria lubrica Clark. 



There are four small, much contracted specimens from Yokohama 

 Bay, which I refer to this species with some hesitation. They differ 

 from the type in being white, and in the occurrence of numerous 

 »knobbed baskets« in the outermost layer of the body-wall. As all of 

 the specimens of this species which have come into my possession are 

 greatly contracted and have been in alcohol some years, I do not feel 

 justified in attempting to separate these Japanese specimens from those 

 collected in Puget Sound. 



5. Cucumaria vegae Théel. 



This would seem to be the most abundant holothurian of the North 

 Pacific islands, for besides 35 specimens from Sitka, there are in this 

 collection 35 specimens from St. Paul, Piibilof Islands, and 30 from 

 Copper Island. They range in size from 10 to 50 mm but the color is 

 remarkably uniform. Nearly all are very dark, almost black, except 

 on the ventral side, where they are pale brown. A few are brown of 

 some shade, and one, from Copper Island, is very light brown all over 

 except the extreme anterior end. These specimens answer perfectly to 

 Théel's description of the specimens he had from Behring Island. 

 Whether, as suggested by Théel, this species is really identical with 

 Brandt's nigricans seems to me doubtful. It resembles carata Co wies, 

 but differs very clearly in the calcareous deposits. 



6. Stichopus californica (Stimpson). 

 Two specimens from Sitka, thus extending the known range of 

 the species very much to the nothward. 



7. Stichopus Japonicus Selenka. 

 There is a single very small Stichopus, 18 mm long, from Sitka. 

 It is pale brown, the skin is very thin, and there are a few large dorsal 

 papillae in 2 irregular rows, 8 — 10 in each zigzag row. On the ventral 

 side are 3 irregular rows of pedicels, merging at each end, but distinct 

 at the middle, each row with about 12 pedicels. The deposits are very 

 crowded tables, exactly like those described by Mitsukuri from the 

 young of St. japonicus. There are also many, very small almost cylin- 

 drical short rods in the outermost layer of skin, but these may pos- 

 sibly be artefacts. At any rate, I think there can be no question that 

 the specimen is a very young individual of the Japanese Stichopus and 

 its occurrence at Sitka is a matter of very great interest. 



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