1898-1902. No. 20.] BRACHIOPODS AND MOLLUSCS. 43 



Cucumaria minuta, FABRICIUS. 



Locality: 



July 11. 1902. St. Helena, 4 14 m. Large and small stones overgrown with fuca- 

 ceae. One 7 mm. long contracted specimen. 



Papillae are arranged in single rows, the three ventral rows having 

 7 9 papillae. Skin is rough. When looked at under the microscope 

 it will be found to be thickly covered with larger and smaller irregular 

 nearly round calcareous plates which, as LUTKEN ! says, remind one of 

 the calcareous plates of cucumaria assimilis- depicted by DUBEN and 

 KOREN. The specimen preserved in alcohol is of a white colour. 



The specimen seems to agree most closely with the West Green- 

 land cucumaria (holothuria) minuta, FABRICIUS 3 which is said to have 

 three rows of papillae more developed than the two others, and its skin 

 abundantly furnished with calcareous plates. I have accordingly referred 

 it to this species. It must be stated, however, that it has not been 

 possible to make a complete examination of the specimen, as I have 

 not been able to dissect it. 



Cucumaria minuta has not been previously found in the archi- 

 pelago north of America. Besides the west coast of Greenland it is 

 known to occur on Grand Manan (North America), at Spitzbergen and 

 on the Murman Coast. In the western hemisphere it was previously 

 known to be distributed between 44 and 69 N. Lat., whereas its nor- 

 therly limit is now 76 15.5' N. Lat. In the eastern hemisphere it is 

 distributed between 68 and 80 N. Lat. From east to west it was pre- 

 viously known to occur between 41 E. Long, and 67 W. Long., or 

 throughout 108 degrees of longitude. (Cf. LUDWIG: Arktische und sub- 

 arktische Holothurien 4 ). It is now known to be distributed westwards 

 as far as 89 16.5' W. Long., or throughout about 130 degrees of 

 longitude. 



Cucumaria frondosa, GUNNERUS. 



Locality: 

 Winter harbour, Havnefjord, 30 m. One specimen. 



1 LUTKEN: Oversigt over Gronlands Echinodermata. 1857, p. 7. 



2 DUBEN & KOREN: Oversigt af Skandinaviens Echinodermer. Kgl. Vetensk. Akad. 

 Handl. 1844 (1846) p. 296, tab. 4, fig. 2. 



3 FABRICIUS: Fauna Gronlandica, 1753, p. 3t6. 



4 Fauna Arctica. Bd. 1, Lief. 1, 1900, p. 144. 



Bergen, March 1909. 



