from the Seas of China and Japan. 143 



transversely banded with irregular red-brown lines and minutely 

 spotted with pale yellow. The sole is also edged with pale 

 yellow. At the caudal extremity of the foot there is a single 

 conspicuous cylindrical terminal filament. I obtained living 

 specimens from 35 fathoms, off Tsu-saki, in Japan. 



Cancellaria Spengleriana, Desh. 



The latest account of the animal of Cancellaria I have seen 

 is given by Dr. Gray in his ' Guide to Mollusca.^ It is very 

 vague and imperfect ; but the true position, I believe, is there 

 suggested to be in close vicinity to Mitra. 



In Cancellaria Spengleriana the tentacles are broad, flat, tri- 

 angularly subulate, wide apart, separated by the base of the 

 retractile proboscis. The eyes are small and black, and are 

 placed on slight tubercles at the outer bases of the tentacles. 

 The mantle is furnished with a small siphonal fold. The foot is 

 large, flat, truncate in front, with short side- angles, and acumi- 

 nate and produced behind. Operculum none. 



The tentacles of this species are rendered dark nearly as far 

 as the eyes by close-set small red-brown dots ; the siphonal fold 

 of the mantle is sparsely spotted with the same ; both dorsum 

 and sole of the foot are reticulate with red-brown lines, and 

 dotted with the same colour. 



The animal is very shy, rarely showing more than the tips of 

 the tentacles beyond the front edge of the shell. It has the 

 power of considerably extending the fore part of the foot, using 

 it as an exploring organ. 



Turcica instricta, Gould. 



I observed the animal of this shell at Satanomo-saki, where I 

 dredged living specimens from a depth of 55 fathoms. It is the 

 Trochus instrictus of Gould originally, then a Monodonta, after- 

 wards (Otia Conchologica, p. 245) a Euchelus. It has, however, 

 the tortuous columella and general characters of my genus Tur- 

 cica, founded in 1854 upon a large species from Australian seas. 

 My Monodonta angulifera, from the Philippines, is an allied but 

 quite distinct species ; and I have recently described a few 

 others. These smaller Turcicce with the outer lip sulcate have 

 been separated by my brother and myself, in our ' Genera,' as a 

 subgenus of Euchelus, under the name of Perrinia. It would, 

 however, have been more correct to have placed them under the 

 genus Turcica. 



In this animal the head, neck, and upper part of the body 

 are finely reticulate with light brown, and the tentacles and 

 siphon are minutely speckled with opake white. The tentacles 

 are long, white, and semipellucid ; the eyes are large and black. 



