226 Messrs. W. K. Parker, T. R. Jones, and H. B. Brady on 



The work is entitled ' Seeks Kupfertafeln mit Conchylien des 

 Seesandes, gezeichnet und gestocben von A. J. G. C. Batsch. 

 Pranumerations-Preis, schwarz, 12 gr., illuminirt 1 Rthlr. Jena, 

 in Commission der academischen Buchhandlung, 1791." There 

 is no preface to the work, a short note, of which the following 

 is a translation, serving as introduction ; after this, a simple 

 description of the species to which each figure is referred is 

 given. In addition to the Latin generic and specific names, 

 each form has a vernacular designation appended, which is 

 mostly a translation of the Latin into German. 



(Translation.) "A short description of the plates, which are 

 of many-chambered shells, either quite straight or partially 

 curved." 



I. Nautilus {Orthoceras) costatus. The Ribbed Sea-staff. PI. 1, 

 fig. la-lg. [Nudosarina (Marginulina) Raphanus, Linn, sp.] 



(Trans.) "The chambers or joints are round, bullet-shaped, and 

 separated from one another, and are bound by strong ribs, which 

 extend without interruption over the whole of the shell, and have 

 for the most part smooth edges. The forms differ both in contour 

 and colour, which here, less than in other natural objects, deter- 

 mine the general character. Fig. 1 is ground down to show the 

 construction of the interior. In Plates I and 2 the small hori- 

 zontal lines show the natural sizes." 



Seven figures in all are given of this form, one of them being 

 evidently a careful representation of a shell with a portion of 

 the surface ground off, so as to show the interior. They represent 

 the strongly ribbed and frequently Marginuline form of Nodo- 

 sarina, to which the specific name Raphanus had previously 

 been given by Linnseus. Amongst the specimens here figured 

 there is a varying degree of obliquity of growth in the earlier 

 chambers, and eccentricity of terminal aperture. Whilst the 

 figures generally are Marginulina, fig. 1 a is only removed from 

 Nodosaria by its slightly excentric aperture ; and the fragment 

 fig. 1 e is a true Nodosaria without any Marginuline curvature. 



II. Nautilus (0.) co matus. The Haired Sea-staff. Pl.l.figs.2«-2</. 

 [Figs. 2 a, 2 b. Nodosaria comata, Batsch ; figs. 2 c, 2d. Glan- 

 dulina glans, D'Orb.] 



(Trans.) "The cylindrical joints run more together, and the whole is 

 covered with riblets, which are continuous, except over the end 

 portions of the terminal chamber. Probably fig. 7 h (on plate 3) 

 is simply a variet) r . Both specimens are ground away." 



The figures referred to belong to two somewhat different 

 varietal forms of Nodosarina. Figs. 2 a and 2 b represent a 

 smallish specimen of Nodosaria Raphanus (the earliest chamber 



