164 Messrs. Parker, Jones, and Brady on 



Textularian subgenus Bigenerina (such as B. digitata and B. 

 nodosaria)^ running into Clavuline forms, with too Kttle di- 

 stinctive character to need a separate varietal name. 



Fig, mm is non-segmented, but has an abnormal lateral 

 chamber ; fig. oo has one constriction ; fig. nn shows three ; 

 fig. II seven ; and all are possibly LituolcB. Some similar 

 forms are represented on the succeeding plate 102, together 

 with other rugose Nodosarine forms. Taking them all together, 

 we may say that Soldani had here mingled rough dimorphous 

 Textidarice with some straight Lituolce^ and at least one 

 spinous Nodosaria. 



41. MarginuUna carinata, D'Orb. PI. IX. fig. 62. 



" Ortlioceratia Zoophytica elongata;^'' Soldani, Testae, vol. i. pt. 2. p. 92, 

 pi. 97. figs, hh, mm. D'Orb. op. cit. p. 259. no. 8. 



^^ Hah. Fossil at Coroncina." (Mediterranean*, Soldani.) 



Of the two figures referred to we have copied only one {mm) ; 

 for, though the arrangement of chambers is very similar in 

 the other, the term " carinata''' could not with any fitness be 

 applied to it. In Mr. Parker's collection are some fine speci- 

 mens of this form, taken off Sicily, which far better help an 

 understanding of its peculiarities than the figures. The earlier 

 chambers are coiled in a subglobular manner, embracing, and 

 to a great extent hiding, one another ; then follow a number 

 which are merely curved ; and the shell is terminated by a 

 straight linear series, with all of the segments more or less 

 flattened and showing a tendency to expand backwards on 

 either edge. The concave side of the shell has a carina ex- 

 tending in a curved line from the centre of the first chamber 

 to the wide portion of the terminal one. 



Possibly it may be best to regard this as a dimorphous 

 variety of Lingulina carinata^ though it might with equal 

 reason be assigned to the genus Flahellina. 



42. MarginuUna suhlztuus, D'Orb. PI. X. fig. 73. 



"Orttoceras SMituus)" Soldani, Testae, vol. i. pt. 2. p. 98, pi. 104. 

 figs. F, G. D'Orb. op. cit. p. 259. no. 9. 



'■'■ Hah. The Adriatic." (Mediterranean or Adriatic, Sol- 

 dani.) 



These are modifications of the typical M. raplianus ; fig. F 

 (copied) has the earlier chambers somewhat flattened and 

 smooth. 



• These and many otber recent Foraniinifera of tbe Mediterranean, off 

 the Tuscan shore and neighbouring islands, Soldani obtained one by one, 

 on breaking up the hard calcareous concretions of zoophytes and litho- 

 phytes, including white and red corals. 



