THE GEPHYREA OF JAPAN. 61 



refer to the above species. In the preserved state they pre- 

 sent nearly all the essential characters attributed to the species 

 by Fischer. But in the fresh state the worms were found to be 

 of a characteristic coloration, quite different from that known from 

 typical T. kohotoniense. Fischer's description of the internal 

 anatomy is so brief, that it does not help me much and so 

 I must say I have considerable doubt as to the correctness 

 of my identification of the specimens. 



The body in the fresh stete attains 'o.b cm. in length and 

 15 mm. in width, the proboscis being much shorter and narrower 

 than the body (Fig. 17). The proboscis is straw-coloured, edged 

 with deep green on the free margin ; the body is of a grayish 

 yellow color, its posterior end being suffused with green. When 

 the circular muscles contract, there appear a series of longitudinal, 

 deep red, dotted lines over the body-surface (see Fig. 17). The 

 papillae are larger in the posterior end of the body than in other 

 regions, where they are arranged in transverse rows or rings on 

 the skin. 



The longitudinal muscle is always divided into 18 bundles. 

 The segmental organs are present in three pairs ; they are colorless 

 and transparent and are all provided with two short spiral lobes. 

 The first pair lie in front of the ventral hooks. The anal glands 

 are one-third as long as tlie body-length and are fixed at their 

 bases to the body-wall by 4-5 small muscles. Over their whole 

 surface are scattered numerous small funnels which have very 

 short stalks. As has been noted by Fischer, the terminal part 

 of the rectum bears a large rectal gland which is connected with 

 the ventral nerve-cord by a short delicate mesentery. 



Habitat : The species was found burrowing in coral sand at 

 Naze (Amami-Oshima) and at Naha (Kiukiu). 



