REPORT ON THE PTEROPODA. 
101 
2. Cymbuliopsis calceola (Verrill). 
1880. Cymbulia calceola , Verrill, Notice of the remarkable Marine Fauna occupying the outer 
banks off the southern coasts of New England, Amer. Journ. Sci. 
and Arts, ser. 3, voL xx. p. 394. 
1882. Cymbulia calceolus, Verrill, Catalogue of the Marine Mollusca added to the fauna of New 
England during the past ten years, Trans. Connect. Acad., vol. v. 
p. 553, pi. lviii. fig. 33. 
Characters and Description (after Verrill). — Shell ovoid, rounded, but of con- 
siderable breadth at the two extremities. The external surface is covered with 
numerous rounded tubercles ; the aperture is larger than the half-length of the shell ; 
the ventral margin is almost straight. 
Animal of a pale yellow colour, with a very large fin, exhibiting an entire and 
continuous margin. 
Dimensions. — Maximum length of shell 4 cm., transverse diameter of the fin 67 mm. 
Habitat. — Eastern coast of North America, about lat. 40° N., long. 70° W. (Verrill). 
Observations. — This species has been somewhat better described than the preceding 
Cymbuliopsis ovata, with which it seems to have close affinities. Verrill does not mention 
whether the proboscis is free along its entire length, but this seems to me very probable 
since it is so in the preceding species. I cannot, however, admit the suggestion of 
Boas, 1 who regards this species as a Gleba (Tieclemannia) . To this view the form of 
the shell is altogether opposed. On the other hand, it is possible that the “ Tiede- 
mannia ” with short proboscis, from the equatorial Atlantic (lat. 2° N., long. 26° W.), 
which Boas has figured, 2 may be identical with Verrill’s species of Cymbuliopsis. In 
spite of certain points of resemblance, the suggestion cannot, however, be made with 
any confidence, since the shell was absent in the specimen described by Boas. It is 
equally difficult to interpret other forms of Cymbuliidse which have been found without 
their shells. Thus we have Argivora parva, Lesueur, 3 from la Martinique (Antilles), 
described as a naked Cymbulia, but admitting of no certain decision. 
Gleba, 4 Forskal. 
1774. Gleba , Forskal, leones rerum naturalium, pi. xliii. fig. d. 
1839. Tiedemannia, Delle Chiaje, in van Beneden’s Exercices Zootomiques, Mem. Acad. Sci. 
Bruxelles, t. xxv. p. 23. 
Characters and Description. — Shell somewhat short, broad, much flattened, rounded 
at the dorsal extremity, slightly truncated at the ventral. The cavity is almost absent, so 
s Ibid., pi. iii. figs. 31, 32. 
4 Gleba, earth-clod. 
1 Spolia atlantica, p. 142. 
3 In de Blainville, Manuel de Conchyliologie, p. 655. 
