282 BULLETIN 93, UNITED STATES NATIONAL MUSEUM. 



1854. Tubicinclla tracliealis Shaw, DARWIN, Monograph, p. 431, pi. 17, 



figs. 3a-3c. 

 1900. Tubicinclla tracliealis MABLOCH, Trans. South African Philos. Soc., 



pp. 1-6, figs, (mode of growth). 

 1903. Tubicint'Ua IraclicuUs Shaw, GBUVEL, Deutsch Siidpolar-Expedition, 



1901-1903, vol. 11, p. 216. 

 1910. Tubicinella "slriata Lamarck" STEBBING, Annals of the South African 



Museum, vol. 6, p. 573. 1 



Of the three specimens contained in the United States National 

 Museum,, one is labeled Isle of France, Isaac Lea collection. The 

 others, without data, are rather remarkable for the wide spacing of 

 the annuli. That shown in plate 65, figure 5, is 50 mm. long, 17i mm. 

 in greatest diameter. The series in the collection of the Academy of 

 Natural Sciences in Philadelphia is Avithout locality. I do not know 

 that it has been found on any wliale in North American W 7 aters. 

 Darwin gives the localities: Southern Pacific Ocean, western South 

 America, New South Wales, Cape of Good Hope. Gruvel, Marloch, 

 and Stebbing have given South African localities. It lives on the 

 southern right whale Balcena australis, on the upper jaw, forehead, 

 and over the eye. 



In the year 1650, specimens of TvMcineUa were observed on the 

 head of a whale found dead on the coast of Syderoe, one of the Faroe 

 Islands, according to Doctor Olao Worm, who gives two character- 

 istic figures in his Museum AVormianum, page 281, published in 1655. 

 This is the only reference I have found to the occurrence of Tubi- 

 cinella in the Northern Hemisphere. 



Genus XENOBALANUS Steenstrup. 



1851. Xenobalanus (ylobicipitis) STEENSTRUP, Yidenskabelige Meddelelser 

 fra den naturhistoriske Foreniug i Kjobenlmvn, pi. 3, figs. 11-15. 



1852. A'cuobdlitiiiis STEEM STBUP, Oversigt over det Kongelige danske Vi- 

 denskabernes Selskabs Forhamlliugar, Februar, 1852, pp. 158, 161. 



1852. Kiijhonicinella (Darwin), STEENSTKUP, Oversigt over det Kongelige 

 danske Yidenskabernes Selskabs Forhaudlingar, Februar, 1852, p. 160. 

 1852. Xenobalanus STEENSTEUP, Yidens. Meddel., p. 62. 

 1852. tiiphonicella DARWIN, Monograph on the Lepadidse, p. 156. 

 1854. Xetiobalanus DARWIN, Monograph on the Balanidse, p. 438. 



It is described by Darwin as having " shell almost rudimentary, 

 star-formed, composed of six compartments; with a long peduncle- 

 formed body rising from the middle; opercular valves none." 



This animal has a striking superficial resemblance to Conclw- 

 derma (Otion) auritum, which is also found on cetacea, though 

 never attached directly to the skin. 



1 Mr. SI ebbing has, in my opinion, taken the first word of Lamarck's diagnosis for a 

 specific name. That the words inclosed in parentheses in Lamarck's paragraphs are the 

 real specific names is demonstrated by his following paragraph, where he says that 

 " Le citoyen Faujas * * * m'a dit que le tubicinclla major a ele decouvert dans les 

 mers du sud de 1'Amerique." 



