. Bulletins of American paleontology. 77 Bulletin 344. x30 4 x65 5 x65 Text-figure 14. —Nitidella cibaoica (Maury, 1917a). NMB H 17421. NMB locality 16934: Rio Gurabo section, Dominican Republic; lower part of Gurabo Formation (late Miocene). 1. apical view, x30; 2. apical view, x65; 3. early whorls, x30; 4. protoconch, x65; 5. protoconch and transition to teleoconch, x65. 30 specimens is probably the one figured by Kiener (pi. 15, fig. 1) and possibh could be the type. But this is not certain. I think that a loctotype has to be designated, eventually the specimen pointed out by ;
. Bulletins of American paleontology. 77 Bulletin 344. x30 4 x65 5 x65 Text-figure 14. —Nitidella cibaoica (Maury, 1917a). NMB H 17421. NMB locality 16934: Rio Gurabo section, Dominican Republic; lower part of Gurabo Formation (late Miocene). 1. apical view, x30; 2. apical view, x65; 3. early whorls, x30; 4. protoconch, x65; 5. protoconch and transition to teleoconch, x65. 30 specimens is probably the one figured by Kiener (pi. 15, fig. 1) and possibh could be the type. But this is not certain. I think that a loctotype has to be designated, eventually the specimen pointed out by ; After comparison of the figure given by Kiener (1834- 1880. pi. 15, fig. 1. 1841) with the specimen mentioned above, of which Mermod thought it might correspond to Kiener's figure, it is obvious that this is not so. The protoconch of the specimen is strongly eroded, whereas the figure shows a pointed apex. In addition the color pattern does not match. There is no evidence that any of the specimens from the Delessert collection were ever part of the original Lamarck collection. For this reason it is not advisable to select a lectotype. On the contrary: it would be preferable to designate a speci- men with good locality information as the neotype of Cohimbella nitida Lamarck. I hesitate to designate a neotype of the species, however, without having stud- ied the history of the case in more detail than has been possible here. A', nitida is widespread in the living fauna of the Caribbean Province. Contrary to the statement by Radwin (1977a. p. 414) it does not occur in the Pleis- tocene of Venezuela. Although Weisbord (1962. p. 320) recorded N. nitida from the Distrito Federal, Vene- zuela, he figured only Recent specimens and stated that "not a single fossil specimen was observed . .". The only fossil species of Nitidella I am aware of is A^. cibaoica (Maury) from the late Miocene of the Do- minican Republic, which is described below. The stratigraphic range of Nitidel
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