42 CURRENT LITERATURE. 



releves. On les trouvera parfaitement exposes et accompagnes de tres beaux dessins, 

 probants et demonstratifs, dans les quatre planches de cet important memoire. 



Un certain nombre de caracteres anatomiques ont conduit divers auteurs a 

 ranger les Ammonoides parmi les Cephalopodes Dibranches ; mais les constatations 

 de Mr. Crick montrent clairement que I'animal des Ammonoides possedait une 

 musculature de fixation tout a fait analogue a, celle du Nautile, seul representant 

 actuel des Tetrabranches. On trouve en effet, dans les deux cas, un anneau en plus 

 des muscles coquillers ; cet anneau devait servir au manteau de surface de fixation 

 sur la coquille. — L. JouBiN. 



Martens, E. von. und Wiegmann, Fr.— Land-und Slisswasser-Mollusken 

 der Seychellen. Mitteil. Zool. Samml. Berlin, 1898, Bd. i, pp. 1-94, Tf. i-iv. 



Dr. E. von Martens here describes and figures the following new species and 

 varieties : — Ennea erinaccus, and var. uniseriata, Streptaxis constans, and var. 

 silhouettce, S. violascens, S. perelegans, S. brancri, Helix prcvtumida, Morel., vars. 

 maliesiana and sUhoueltcc, BuUminus ornatus, Dufo, var. biornatus, B. aldabnc, 

 and Hapaliis braucri. A new genus {I'riodisais) is constituted for the 2'rocho7norpha? 

 serraia, Nev. 



In the second part (pp. 37-94) by Herr Wiegmann, a beautifully illustrated 

 account is given of the anatomy of most of the above new forms, and also the 

 following: — Ennea dussumicri, Fer., Streptaxis soulcyctianus, Petit, Streptostele 

 nevilli, H. Ad., and its var. dubia, Wgm., Priodiscus serratiis, H. Ad., Kaliella 

 subturritula, Nev., Helix similaris, Fer., H. unidentata, Chemn., and //. 

 studeriana, Fer., Buliminus ornatus, Dufo, var. fulvi cans, Pfr.,Ac]iatina panihera, 

 Yix., Subulina odona, Chemn., and Succinca rnascarena, Nev. 



In addition to plates 3 and 4 illustrating the anatomy, there are some 40 figures 

 in the text. — W. E. C. 



Wiegrmann, F. — Ergebnisse einer zoologischen Forschungsreisc in den MoUikken 

 und Borneo. LamdmoUusken (Stylommatophoren). Abhandl. d. Senckenb. 

 naturf. Gesell., 1898, Bd. xxiv, pp. 289-557, Tf. xxi-xxxi. 



In the space at our disposal it is quite impossible to do more than enumerate the 

 species which the author has anatomically described in this beautiful and valuable 

 memoir. To those malacologists who regard the slug-fauna of Borneo, Java, etc., 

 as worked out, we would commend a perusal of Herr Wiegmann's description 

 of the anatomy of two new species of I'armarion, illustrated by 37 figures. 



A word must be said in praise of the number and execution of the illustrations, 

 accompanying the 268 pages of letterpress, there are 1 1 folio plates of 378 figures, 

 all of which are excellent. 



The species described are as follows : — Rhysota brookci, Ad. and Reeve ; Par- 

 marion maculosus, n. sp. ; P. (?) dubius, n. sp. ; Helicariun kukenthali, Kob. ; 

 H. halmahericus, Kob. ; H. minahassae, Kob. ; Medyla viridis, Q. and G. ; 

 Everettia jucunda, Pfr. ; E. mollendorffi, Kob.; E. (?) fulvocarnca, Mrts. ; Dendro- 

 troehus conicoides, Mete; Hcmip)Iecta dcnsa. Ad. and ]\. ; Xesta cincta, Lea.; A'. 

 halmaherica, Strub. ; Dynkia hugonis, Pfr.; Trochomorpha lardea, Mrts.; T. bicolor, 

 Mrts.; T. planorbis, Less., T. timorensis, Mrts.; Plunispira exceptiuncula, Fer.; 

 P. expansa, Pfr.; P. scheepmakcri, Pfr., v. halmaherica, Kob.; P. surrccta, Bttgr. 

 and Strub.; P. ::onalis, Fer.; P. loxotropis, Pfr.; Pseudohba quoyi, Desh. ; Phania 

 kukenthali, Kob.; Albersia pubicepa, Mrts.; PajnUna vitrca, Fer.; Amphidromus 

 porccllanus, Mouss. ; A. sinistrals. Reeve. — W. E. C. 



ViguieP, C. — Contributions a I'etude du developpement de la Tethys jimbriata. 

 Arch, de Zool. exp. et gen., 1898, (S. 3) vol. vi, pp. 37-62, pis. vii-ix. 



Dr. Camilla Viguier in the 5th of his series of " Eecherches sur les Animaux 

 inferieurs de la Baie d' Alger" gives an interesting account of the development of 

 the large Opisthobranch Tethys Jimbriata. He compares and contrasts the early 



