Miscellaneous. 1G7 



have been identified, and from this arrive at the conclusion that 

 they present the closest resemblance to the jaws of Annelids and of 

 certain Gephyrea. They give a list of three simple and four compo- 

 Bite forms of Conodonts described and figured by Pander, which they 

 identify with Annelid jaws figured by Ehlers, finding an agreement 

 between the fossil aud recent forms not only in external, but also 

 in histological characters. In connexion with this comparison the 

 authors call attention to the fact that in the Annelids there is in 

 both jaws an alternation of teeth of a simple conical form with those 

 resembling the so-called composite Conodonts — that is to say, those 

 in which the base of the organ is widened and bears two or more 

 small points on each side of the large central cone. The Gephyrean, 

 Halicryptus spimdosus, which is very abundant in the Baltic, also 

 possesses denticles remarkably resembling Conodonts both in form 

 and structure. 



The authors conclude their paper as follows : — "As the result of 

 our investigations, therefore, it appears that in their structure the 

 Conodonts have nothing in common with the teeth, composed of 

 dentine, of the Selachia or any other fishes, nor with the corneous 

 teeth of the Cyelostomi, and that they cannot be interpreted as lingual 

 denticles of Mollusca, hooks of Cephalopoda, or fractured points of 

 Crustacea, but that they agree admirably both in form and structure 

 with the buccal apparatus of Worms, and especially of Annelida aud 

 Gephyrea. 



" Consequently not only those already recognized by Hinde as 

 Annelid jaws, but all the Conctdonts, are calcified cuticular buccal 

 or oesophageal denticles of Worms, consisting of parallel lamellae 

 superimposed upon each other. From the great multiplicity of form 

 we may conclude that the Conodonts are derived from numerous 

 genera and species, and that consequently, in the Palaeozoic era, the 

 shores of the sea were peopled with a great abundance of Worms of 

 very different kinds." — Sitzuiif/sb. der k. bayr. Akad. der Wiss., 

 Math.-pTiys. Classe, 188G, pp. 108-136, with 2 plates. 



Note on the Rejytiles and BatracTiians collected by Captain Em. Storms 

 in the Taaganyllca Region. By M. L. Dollo. 



In this paper M. Dollo enumerates the species of Reptiles and 

 Batrachia collected by Capt. E. Storms in the neighbourhood of 

 Lake Tanganyika, and describes two new forms. The Batrachia 

 recorded are liappia marmorata, Giinth., and Bufo regularis, 

 Heuss. The known species of Reptiles are Agama atricollis, Smith, 

 A. planiceps, Peters, Varanus niloticus, Linn., Euprepes varius. 

 Pet., Chamceleon dilepis, Leach, G. gracilis, Hallowell, Typhlops 

 Schlegelii, Bianconi, Boodon infernalis, Giinth., Bucephalus capensis, 

 Smith, Philothamnus Smithi, Bocage, Psammophis sibilans, Jan, 

 Rhamphiophis rostratus, Pet., Atractasp>is Bibronii, Smith, Causus 

 rhombeatus, Licht., and Viper a arietans, Schleg. 



The new species are both snakes. The Colubrine Qrayia Griardi, 

 Dollo, is distinguished from Qrayia silurophaga, Giinth., by having 

 the anterior temporal single instead of double, three instead of two 



