PBOBOSCINA. 75 



4. Proboscina divisa, Yine (non fitall.). 



SYNONYMY : 



Proboscina divisa, Vine, 1893, Polyz. Thrapston : Proc. Yorks. Geol. Soc. 

 vol. xii. p. 256, pi. xiii. fig. 8. 



Distribution. Cornbrash : Thrapston. 



Vine's type cannot be recognized, but a second specimen, labelled 

 "P. divisa, poor," has upon it a young P. desoudini and several 

 zoaria of P. jacquoti. 



5. Proboscina elegantula (D'Orb.). 



SYNONYMY : 



Idmonea elegantula, D'Orbigny, 1849, Prod. Pal. t. i. p. 288. 

 Proboscina D'Orbigny, 1852, Pal. franQ. Terr. cret. t. v. p. 845. 



,, ,, E. E. Deslongchamps, 1857, Syst. ool. inf. Calvados: Bull. 



Soc. linn. Norm. t. ii. p. 328. 



Distribution. Bajocian and Bathonian : France. 



6. Proboscina expansa, Etallon. 



SYNONYMY : 

 Proboscina expansa, Etallon, 1860, Jura Graylois : Ann. Sci. phys. nat. Lyon, 



ser. 3, t. iv. p. 175. 

 Name only. 

 Distribution. Corallian substage Glyptician : Chassiguy, France. 



7. Proboscina gracilis, D'Orbigny. 



SYNONYMY : 



Idmonea gracilis, D'Orbigny, 1849, Prod. Pal. t. i. p. 317. 

 Proboscina ,, D'Orbigny, 1852, Pal. fran9 Terr. cret. t. v. p. 846. 



,, ,, E. E. Deslongchamps, 1865, Jur. inf. Norm. : Mem. Soc. 



linn. Norm. t. xiv. p. 151. 



Distribution. Bathonian : Ranville. 



SYNOPSIS OF SPECIES. 

 I. Zocecia all cylindrical. 



Peristomes well raised ; zoarium flat ... ... jacquoti, Haime. 



Peristomes low ; zoarium in linear bands, mostly 



biserial, frequently branched cunningtoni, Greg. 



Multiserial, seldom branched 



Zoarium flat ... liassica (Quenst.). 



Zoarium ridged ... eudesi (Haime). 



Zoarium in tui'ts and sheets rigauxi (Sauv.). 



