On the Genera of Stephrinoceras and Allies. 145 



submcntura covering over the base of the maxillie show that 

 Mysteria is in some respects a very specialized genus and 

 cannot be considered as ancestral. 



One of the chief obstacles to my view of the matter has 

 been the difficulty hitherto of showing how such forms as 

 the Lamiida3 could be derived from Lepturoid ancestors. 

 This difficulty is to a great extent removed when we see a 

 genus like Atimia, which admittedly is closely related to the 

 Lepturinse, presenting so striking a resemblance in general 

 form to the LamiidfB. 



The genus Tenthras, associated with Atimia both by 

 Thomson and Lacordaire, is actually a Lamiid referable to 

 the group Acanthocinides. 



Cerambyx notatus, Drary, Illustrations of Exotic Insects, ii. 

 p. 64, pi. XXXV. fig. 2, and Index (1773). 



This species is omitted from the Catalogue of Gemminger 

 and Harold, and appears to have escaped the notice of North- 

 American entomologists. Drury's figure and description of 

 it are so good as to leave no room to doubt that it is a North- 

 American species of MonohaminuSj identical with ^1/. confusoVj 

 Kirby. The latter name, being much later in date, must go 

 as a synonym. 



XXIII. — The Genera of Stephanoceras and Allies. 

 By S. S. BucKMAN, F.G.S. 



Dr. Erich Mascke has lately published at Gottingen his 

 " Inaugural Dissertation " under the title of " Die Stephano- 

 ceras- Verwandten in den Coronatenschichten von Nord- 

 deutschland." This ])aper shows great promise, and the 

 very comprehensive work on the subject which is to follow 

 will be awaited with much interest. The following abstract 

 of and notes on the palaiontological portion of his paper will, 

 it is hoped, bo of service. 



Family Otoitidae, I\lascke. 

 Gcuus Otoites, Mascke. 



" Type, Am. sauzei, d'Orb." 

 17 species, of which 15 are new. 

 Ann. ib May. N. Hist. Ser. 8. Vol. i. 10 



