406 On a nfiw IJulothur inn from Bermuda. 



shore), an iiulivltlual wliicli was at once seen to be peculiar. 

 The HoU)thurian was about 25 cm. in length, and of a deep 

 yellowish-brown colour, unmarked by spots of any other 

 line. Anal teeth were particulaily prominent, and tlie pedi- 

 ciles and ventral surface were tinged with greenish piotnent, 

 puch as one is accustomed to see in llolothuria cnpttva and in 

 //. surinamenffis (Orozier, 1915, p. 274). Stichojuts has no 

 anal teeth, and totally lacks this green pigment. The speci- 

 men was unfortunately lost before detailed examination could 

 be given it. Attempts to discover an additional example 

 have thus far been fruitless. 



The single specimen observed has, however, considerable 

 zoo-geographical interest. It seems jirobable, from the 

 external characters above mentioned, that it is an Actinopi/ga, 

 presumably A. agassizii (Selenka) *, which is known from 

 the Bahamas, Florida, Tortugas, Barbadoes, Jamaica, and 

 Hayti (Sluiter, 1910). The inference seems fair that it 

 represents a recent arrival in Bermudan waters, since previous 

 extensive and detailed collecting has failed to reveal its 

 presence, and since only a single specimen has been found. 

 Concerning the method whereby, on this assumption, it came 

 to Bermuda, one can only speculate. It may have been 

 transported either (as a larva) by ocean currents or (as an 

 adult) upon the bottom of a vessel. The latter seems the 

 less probable. 



References. 



Brittox, N L. 1912. "Botanical Exploration in Bermuda," Jouru. 

 N.Y. Bot. Gard. vol, xiii. pp. 189-194, 5 pi. 



Claek, H. L. 1901. " Bermudan Ecliinoderms. — A Report on Obser- 

 vations and Collections made in 1899," Proc. Bost. Soc. Nat. Hist, 

 vol. xxix. pp. 339-345. 



. 1907. " The Apodoiis Holothurians : a Monograph of the 



Svnaptidfe and Molpadidee," Smithsonian Contrib. Knowl. 

 vol. XXXV. 231 pp., 13 pi. 



C/ROZiER, W. J. 1915. *' The Sensory Reactions of //o?t»<7»i?-iaswm<?»??- 

 ensis, Ludwig," Zool. Jahrb., Abt. Phvsiol. Bd. xxxv. pp. 233-297. 



PiLSBBY, H. A. 1900. "The Air-breathing Mullusks of the Ber- 

 mudas," Trans. Conn. Acad. Arts & Sci. vol. x. pp. 491-509, 

 pi. 62. 



Sluiter, C. P. 1910. " Westindische Holothurien," Zool. Jahrb., 

 Suppl. 11, pp. 331-342. 



* I am indebted to Dr. H. L. Clark for a suggestion regarding the 

 probable identity of the specimen. 



