MEDUS/E OF WOODS HOLE REGION. 



73 



ORDER CESTIDiE. 



Body greatly elongated and ribbon-like. 



CESTUS Lesueur ( ISIS). 

 Cestus veneris Lesueur. 



Philomatique, 1813, p. 281, 



Chun, Ctenophoreti Plankton-Expedi- 



Cestna veneris Lesueur, Nouveau Bulletin de la Soci6t 

 Hon, 1898, p 20 



This is a distinctively tropical species and rarely found beyond a tropical range. It lias been 

 reported by S. 1. Smith from Georges Bank, and A. Agassiz has reported fragments of a single 

 specimen found at Newport, B. I. 



NONTENTACULATA. 



Ctenophora wholly devoid of tentacles. 



Only the order Beroida, family Beroidse, has representatives in this region. The body is ovoid, 

 usually somewhat compressed laterally. Mouth very large, opening into 

 a capacious stomach. Radial canals with lateral and variously anasto- 

 mosing blanches. 



BEROE Browne (1756). 



Beroe ovata Bosc. 



Text cut. 



Fewkes, Bulletin Museum 



Beroe ovoid. 



Berot ovata Bosc, Histoire Naturelle des Vers. 1802, p. 149 



Comparative Zoology, Vol. IX, p. 251. 

 Tdyia ovata Lesson, Histoire Nuturelle Zoophytes Aealephes, 1843, p. 134. 

 Tdyiopsis clarkii L. Agassiz, Contributions Natural History United States, Vol. III. 1860, 



pp. 288, 296. 

 Tdyfopsis affinfa L. Agassiz, Contributions Natural History United states, Vol. Ill, ]xr,o, 



pp. 288, 296 



One of our finest ctenophores. Body large, measuring 40-70 mm. 

 in polar diameter, with about half the width. Margins plain and capable 

 of slight evagination or contraction. Radial canals 8, extending to the 

 margin ami otherwise connected with numerous anastomosing lateral 

 branches. Ciliary areas prominent and of beautiful pinkish hue. 



Common at Woods Hole in 1901, though seldom taken in any con- 

 siderable numbers. 



Beroe cucumis Fabricius. 



Berot cucumia Fabrieius, Fauna Groenlandica, 1780, p. 361. Escbscholtz, System der 

 Aealephen, 1829, p. 36. Chun. Ctenophoren der Plankton-Expedition, 1898, p. 26. 

 Idyia borealia Lesson, Natural History der Zoophytes Aealephes, 1843, p. 134. 

 Media arctica Lesson, Natural History der Zoophytes Aealephes, 1843, p. 134. 

 Tdyia n»>>,la I.. Agassiz, Contributions Natural History United Stales. Vol. Ill, 1862, pp 

 Tdyia cucumis A. Agassi/. North American Acalephae, 1865, p. 36. 



This, like the preceding, is a most beautiful ctenophore, of splendid roseate hue, varying in size 

 from 15-20 mm. in polar diameter, with about half the breadth. In general aspects it is much like 

 the preceding, though much smaller and more brightly colored. 



Range, according to Verrill, from Vineyard Sound to Labrador. Reported by Agassiz from coast 

 of New England. Taken by the writer in 1902 off Crab Ledge, near Chatham, Mass. 



LITERATURE CITED. 



Only the more important citations of authorities are included in the following- 

 list: 



Agassiz, A., Catalogue of North American Acalepha?. Cambridge, 1865. 



Agassiz, A., and Mayek, A. G., Medusa? of the Pacific. Memoirs Museum Comparative Zoology, Vol. 

 XXVI, Cambridge, 1902. 



270 and '-'90. 



