124 CURRENT LITERATURE. 



Boettger, O. — New Stenogyra from W. Africa, and a new Aperostoma from 

 Honduras. Nachr. Deutsch. Malak. Gesell., 1892, pp. 202-4. 



Dr. Boettger describes, under the new section Pseiidoglessula (created for the 

 reception of such forms as calabarica, I'fr. , from W. Africa), Ps. heteracea 

 (Cameroons), and Ps. suberenata (Akkra), also Aperostoma goldfussi, from 

 N. W. Honduras. 



Grobben, C. — Das System der I.amellibranchiaten. Zool. Anz., w. pp. 371-5. 



This paper is practically an abstract of the concluding section of Grobben's 

 memoir on the anatomy of Cuspidaria {'ride supra), and reference should be made 

 to the complete memoir for a fuller statement of the arguments here employed. 

 The author discusses the value. in Lamellibranch classification of modifications in 

 the structure uf the gills. He regards I'elseneers attempt to found a system 

 based exclusively upon gill-structure as unsuccessful, just as unsatisfactory as 

 systems based exclusively upon the type of hinge. The scheme which he adopts 

 commends itself to us as a temperate compromise between Neumayr's system 

 founded upon the shell, and I'elseneers based upon anatomical grounds. The 

 chief features of Grobben's system will be found in the synopsis here given : — 



Class : LAMELLIBRANCHIATA. 



Sub-class i. — Protohranchiata.— Neumayr's PaLcoconchtc, together with 



\ it 11 lid,,. 



,, ii. — Desmodonta. — My id,,-, Septibranehia, Gastrochanida, &c. 

 ,, iii. — Ambonodonta. 



Order 1. — Eutaxodonta. — Arcida only. 

 ,, 2. — Heterodonta. — A start id,,-, Solenidce, Donacidee, ifcc. 

 ,, 3. — Schizodonta. — Trigonid(V, NajadiC. 

 ,, 4. — Anisomyaria. — Aviculida, Mytilid.r, Pectinida, 

 Ostreida, Anotniida>, &c. 

 The author leaves the mode of subdivision of the Desmodonta to be decided 

 by further researches. — \V. G. 



Hartman, W. H.- Catalogue of the Genus Partula. Nautilus, vi.,pp. 73-6 

 and 97 9. 



Hedley, C. — On the Genus Perrieria. l'roc. Linn. Soc, New South Wales, 

 vii., pp. 31 1 -13. 



Mr. Hedley states that layardi, Ad. and Ang. , is the type of caliaxis, and 

 not exigua, as stated by Fischer in his manual [Fischer only stated that the exigua 

 was an example of ealia.xis, not that it was the type] and proposes that Perrieria 

 (■1878) should include clausila/ormis, Tap. Canefri, and anstralis, Forb., of which 

 latter he states that exigua is only a synonym. He is convinced that exigua did 

 not come from the Solomon Islands. — F. U.S. 



Jhering, H. v. — Ueber A topos. Nachr. Deutsch. Malak. Gesell, 1S92, pp. 140-4. 



Jhering, H. v. — Naiades from San Paulo, &c. Arch, fur Naturgesch., Jahr. 59, 

 pp. 45-140, pi. iii.-iv. 



Jordan, H. K. — Report on some species of the genera Buccinum, Buccinopsis, 

 and Fusus dredged off the S.W. of Ireland. Proc. Roy. Ir. Acad. ser. 3, 

 vol. ii., pp. 391-6. 



Martens, H. v. — New species of L. and F. VV. Moll, from Uganda and the 

 Victoria Nyanza. Sitz. Ber. d. (les. Nat. Fr. zu. Berlin, 1S92, pp. 15-19. 



Martens, H. v. — Four new African Shells. Ibid., p. 1S1. 



Melvill, J. Cosmo. — Notes on Cyprtea chrysalis and C. amphithales. Journ. 

 Conch., 1S92, p. 12c. 



