98 Moll. 
MOLLUSCA. 
IV. POLYPLACOPHORA. 
Chitonidje. 
Structure of the integument ; Blum men, Z. wiss. Zool. lii, pp. 
404-476, figs. 
Chiton ( Ischnochiton ) yerbuipi , C. ( Callistochiton ) adenensis , n. spp., 
Aden, Smith, P. Z. S. 1891, pp. 420 & 421, fig. 
Y. APLACOPHOR A. 
Neomeniid^}. 
Anatomy of nine species belonging to the genera Dondersia, Ismenia, 
Proneomenia, and Paramedia . 
Dondersia banyulensis, p. 715, flavens, p. 718, n. spp., Banyuls ; Pruvot, 
Arch. Z. exp6r. ix, figs. 
^ Ismenia , n. g., I. ichthyodes , n. sp., Banyuls, Pruvot, Arch. Z. exp6r. 
ix, p. 719, fig. 
^ Paramenia , n. g., with P. impexa , sierra, pali/era , n. spp., Banyuls, 
Pruvot, Arch. Z. exp6r. ix, pp. 724-727, figs. 
Proneomenia sopita , n. sp., Banyuls, Pruvot, Arch. Z.expdr. p. 721, fig. 
VI. SCAPHOPODA, 
t Cadulus nutans , n. sp., Cretaceous of Upper Bavaria, Boehm, Paleeon- 
togr. xxxviii, p. 70, fig. 
Dentalium : discovery of the heart ; Plate, Zool. Anz. 1891, p. 78. 
D. senegalense, Senegal, Dautzenrerg, M<$m, Soc. Zool. iv, p. 53, fig. ; 
+D. tenuicostatum , Cretaceous of Upper Bavaria, Boehm, Palseontogr. 
xxxviii, p. 69, fig. : n. spp. 
4 \Spirodentalium , n. g., type S. osceola, n. sp., Cambrian of Wisconsin ; 
Walcott, P. U. S. Nat. Mus. xiii, p. 271, fig. 
VII. pelecypoda. 
Anatomy of typical forms, comparative anatomy, and classification 
based on the gill structure ; Pelseneer, Arch. Biol, xi, pp. 147-322, figs. 
(Preliminary communication, Bull. Sui. Fr. Belg. (3) ii (1889) pp. 27-52). 
— Anatomy and circulation, with classification ; M^negaux (279). — 
Classification according to hinge characters ; full text so far as completed 
of the scheme propounded in 1883 [c/. Zool. Rec. 1883, Moll. pp. 86 & 
87] ; Neumayr, Denk. Ak. Wien, lviii, pp. 701-801. 
Mechanical origin of structure in Pelecypods ; Jackson, Am. Nat. xxv, 
P- II- 
Septibranchiata and Dulamellibranchiuta Anatinacea are hermaphrodite 
with distinct male and female glands ; Pelseneer, Zool. Anz. 1891, p. 5. 
