EKRANTIATE TOLYCHAETA OF JAPAN, 



53 



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A 



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Marmot hoë yokohanilensls (Mclntosli). 



1885. Lagiscu yokoliamiensis, Mclutosli. " Clialleuger " AnneL, p. 89, 

 PI. XlA, figs. 12, 13. 



I liavo not been able tu secure 

 a specimen of this species. 



Prof. McIntosh's description of 

 the species, based on a dried speci- 

 men, may be summarised as follows : 



Elytra and dorsum mottled all 

 over with dark brownish pigment, the 

 prostomium being especially dark. 

 Tentacles as well as tentacular and 

 dorsal cirri have numerous and some- 

 what long cilia, each with slightly 

 bulbous tip. The elytra are studded 

 all over with small spines, their 

 posterior and outer borders showing 

 numerous and rather long cilia. 



Both dorsal and ventral bristles 

 are of a pale straw yellow colour. 

 Dorsal ranms of parapodium bears 

 a serries of bristles with a smooth, 

 sharp point. The serrated rows are 

 distinct, though the spines are not 

 long. 



Ventral l)ristles have bifid tip 

 and well-marked spinous rows. The 

 secondary ])r(K'ess forms an acute 

 angle with the lung axis of tlie liuuk 

 un the tip : tliu smuuth purtion l)e- 





B 



A. Dureal bristle ot II. ilukoluimioisia 



:3r-o/i. 

 Ji. Ventral bristle ut sjinie. iilO/l. 



[After McIulüöL.] 



