Reviews — New Cretaceous Gastropoda. 471 



Marshall 1 states that remains of Parrots occur in the Eocene of 

 Wyoming, but I have been unable to find any warrant for this 

 statement. 



Chas. W. Andrews. 



II. — New Cretaceous Gastropoda. By Bruce Wade. 



A NOTABLE contribution to the palaeontology of the Cretaceous 

 Mollusca has recently been published in the Proceedings of the 

 Academy of Natural Sciences of Philadelphia, vol. lxviii, pt. iii, for 

 1916—17 (pp. 455-71, pis. xxiii-iv), under the title of "New 

 Genera and Species of Gastropoda from the Upper Cretaceous ", by 

 Bruce Wade. The paper is descriptive of a number of elegant shells 

 in a remarkable state of preservation, some having colour as though 

 freshly taken from the sea. The material was collected at Coon 

 Creek, in the north-eastern part of the Nairy County, in west-central 

 Tennessee, from an horizon in the lower part of the Ripley formation. 

 With such excellent material as a basis, several new generic types 

 have been described, and the results will be helpful to those who are 

 familiar with similar shells from other areas, and cognizant therefore 

 of the necessity for the establishment of new divisions. Seven 

 families are represented among the forms described, and there are 

 nine new genera and eleven new species. Mataxa elegans is the type 

 of a new genus of the Cancellariidae ; and among the points of 

 difference from Cancellaria are the development of a canal, the lack 

 of conspicuous cancellate sculpture, and a less acuminate spire. 

 Mataxa includes Stoliczka's Narona eximia, from the Cretaceous of 

 Southern India, and is probably near the recent sub-genus Massyla. 

 To the Volutidae are assigned two new genera, Tectaplica and Drilluta. 

 Tectaplica is considered as one of the most primitive of the Volutes, 

 and as ancestrally related to Volutilithes, from which it differs in 

 having a shorter spire, with flat sides not interrupted by pronounced 

 shoulders. Tectaplica simplica is the genotype. The new name 

 Drilluta is a contraction of the names Drillia and Yoluta, and the 

 genus includes a group of Yolutes that have been variously described 

 under these names and also under Fasciolaria and Fusus. The absence 

 of a posterior siphonal notch and the presence of columella plaits 

 distinguish this new genus from Drillia, while a lower spire and 

 numerous transverse folds can be noted as points of difference from 

 the typical Voluta. Drilluta is separated into two well-defined 

 groups: section A (type, D. communis, sp. nov.) and section B (type, 

 D. major, sp. nov.). The Fusidae are represented by a new sub-genus 

 Anomalofusus, and Ornopsis, gen. nov. The new sub-genus resembles 

 Phos, but is much more slender, and it differs from Fusus in its 

 shorter canal and its thickened and notched outer lip. Fusus {Anomalo- 

 fusus) substriatus is the type. Omopsis glenni is the type of a genus 

 that bears resemblance to Latirus in general outline, and to some of 

 the Buccinidse in its close compact spire. Hydrotrioulus (type, 

 H. nodosus, sp. nov.) is a new genus, assigned to the Buccinidse, 



1 Zoologische Vortrage, " Die Papagaien," p. 45, Leipzig, 1889. 



