On a new Enteropneust from Misaki, Balano- 

 glossus misakiensis n. sp. 



BY 



Hisato Kuwano. 



Since the description by Eschscholtz, of Ptychodera fiava, the 

 first Enteropneust mentioned in literature, thirty species of this 

 group have been reported up to the present date, from different parts of 

 the world by different writers. But our knowledge in regard to the 

 Enteropneustic fauna of our part of the world remains as yet very scanty. 

 Only two species, Glandiceps hacksi Marion and Dolichoglossus sulcatus 

 Spengel have been reported from the Main Island of Japan. Of these 

 the second species has been left with a rathar meagre description owing 

 to the lack of specimens. Under these circumstances, I have thought it 

 worth while to devote myself to a study of the animals of this group 

 found in the vicinity of Misaki and I have succeeded in gathering four or 

 more different species. 



The present species is oik; of ttiesu and appears to me to be new to 

 science. The animal is found in a sandy flat in the cove of Moroiso, 

 opposite the Marine Station. 1 



The habitat is limited to a small area ot the flat exposed at the time 

 of spring tides. It is one of the gregarious species and lives in the same 

 locality with two different species of BaLuiogìossi/s Delle Chia.ie, one 

 of which is smaller while the other is larger.- 



Though the animal is one of the burrowing snacies, I have not found 

 it deeper in the sand than at the most two feet in depth, and have never 



1. ) I have lieeu told by Dr. Oku and by K.'Awoki, Collector in the Marine Station' 

 this species is also found in the sandy beach of Tatcyama, Province of Awa. 



2. ) The occurrence of different species of Euteropnetists in the same locality as eo- 

 inhabitants have been frequently observed, as Ptychodera flava and Qlossobalanus hedleyi in 

 Funafuti, Ptychodera flava and Spenge! ia porosa in Lifn and GloMObalanus ruficollU and 

 BaJanoglosêin earnoiius in New Britain. (Hill, p. 20ô : Willey, 1S90. p. 24*.) 



