44 THE NAUTILUS. 



SOME NAMES WHICH MUST BE DISCAEDED. 



BY WM. H. DALL. 



Iii January, 1853, Gray (Brit. Mus. Cat. Brach., p. 114) insti- 

 tuted the genus Gistella for Terebratula cuneata of Risso and allied 

 forms. This name has been generally adopted and, in the last re- 

 vision of the Brachiopods by Schuchert, is not credited with any 

 synonyms. But in 1848, Gistel, in his Naturgeschichte des Thier- 

 reichs, p. xi, proposed the name Oistella for a group of Insects. For 

 the Brachiopod, therefore, I propose the name Aryyrotheca, with the 

 same type. 



The name Euryla was proposed for a subgenus of Terebra, by H. 

 and A. Adams in 1858, and is in general use, but Euryta had already 

 been used for an acaleph by Gistel, in 1848, and must therefore be 

 rejected. In its place I would propose Mazatlania. In 1876 Jef- 

 freys proposed Glomus for a remarkable bivalve allied to Leda, but 

 he had also been preceded by Gistel, who had proposed the name 

 Glomus for a beetle (Naturg. p. xi, 1848). The genus may take 

 the name of Pristigloma, 



The dismemberment of the heterogeneous Linnean genus Patella 

 was one of the first tasks of naturalists after the publication of the 

 Systema Naturas. The first author to undertake this necessary work 

 has been generally overlooked. This was Modeer, who in 1793 

 (K. vetensk. Akad. nya Handl. xiv, pp. 110-111) divided the true 

 limpets from those with internal septa or processes and gave to the 

 latter group, with a proper diagnosis, the name of Gheilea. This 

 group was subsequently divided by authors who, however, omitted 

 to reserve any portion of the original genus Gheilea to preserve the 

 name, as required -by the. rules of nomenclature. On the five species 

 cited as examples by Modeer, four genera were instituted by Hum- 

 phrey (after Hwass) in 1797, two belonging to his genus Crypta, 

 more generally known as Grepidula. In 1799 Lamarck made two 

 subdivisions with new names for three of the species, and added a 

 third in 1809. Ferussac added a synonym to one of Humphrey's 

 names in 1807, and Schumacher did the same in 1817, while a 

 subgeneric name was proposed by Morch, for one of the two 

 Crepidulas, in 1852. What name must we now reject, to reinstate 



