lEEDALE : MOLLUSCAN NOMENCLATURAL PROBLEMS. II. 205 



have not found either of these names. Scxidder does not appear to 

 have recognized Megerie as his own " Miihlfeldt ", as he also includes 

 "Cratere. Miihlfeldt (cf. Porro. Mai. Prov. Com. p. 47), 1838. Dentina, 

 Miihlfeldt MSS., Teste Villa, Disp. Syst., p. 45 (= Lentidium Cr. 

 et Jan.), 1841. Contorta ib. ib., p. 19 (= Drepanostoma). Thiara, 

 Muhlefeldt Cat. MSS. (= Melanin) Agassiz." 



It is now considered correct for a worker to verify all references, 

 and in these instances none of the names call for recognition anterior 

 to Scudder's publication of them. Nevertheless, we find that 

 Cossmann has proposed Antimurex (Essais de Paleoconch comp. 

 livr. 5, p. 12, Decembre, 1903) as a new name to replace Crassilahrum 

 Jouss(eaume), non Megerle ; but Megerle's name was not published 

 until after Jousseaume's and, furthermore, at that later date is 

 absolutely a nomen nudum. 



Fabricius' 1823 Names. 



Another series of generic moUuscan names that has been recorded 

 by Scudder are those accredited to Fabricius, which appeared in a 

 tract entitled " Fortegnelse over afg. Bishop Fabricius ses esterladte 

 Naturalier ", the date being given as 1823. 



The list of names is not regularly binomial, and questionably 

 of binary composition. They are all nomina nuda, and no authorities 

 being cited, consequently indeterminable. I have noted the 

 following : — 



PAGE. 



53. Unino. 

 57. Macra. 



70. Birostris. 



71. Catinus. 

 74. Plicaria. 



80. Tuba. 



81. Unicornu. 

 83. Timis. 



Sipho. 

 Simpulum 



86. Pugil. 

 Bigitata. 



87, Varicaria. 



90. Canistrum. 



93. Lunaria. 



94. Auricularia. 



98. Saccus. 

 101. Lahiata. 

 104. Caminata. 

 Coronaria. 



Apparently ? error for Unio. 



do. do. Mactra. 



Cited by Scudder as " Fabricius Cat. Cab. 



Fabr. (= Birostra Swains), 1823 Agassiz ". 



id. 



id. (= Cancdlaria). 



id. (= Achatina). 

 Not in Scudder. 

 Apparently ? error for Fusus. 

 Scudder, "Fortegn, p. 83, 1822." 

 Not in Scudder. 

 Scudder. "Fortegn, p. 84, 1822." 



id. 

 Scudder as " Fabr. Cat. Cab. Fabr. ex Agassiz— 



Purpura ". 

 Not in Scudder. 

 Scudder, "Fortegn." 

 Scudder as " Fabr. Cat. Cab. Fabr. ex Agassiz " 



-- Lymncea. 



id. = Ampullaria. 

 Scudder, " Fortegn." 

 As "Fabr. Cat.", etc. = Fissurella. 



id. = Aspergillum. 



