236 MESSES. E. HEEON-ALLEN AND A. EAELAND ON THE 



2 Stations. 



D'Orbigny's species, as reproduced (ut supra) from the " Planches inedites " by Fornasini, 

 represents a Bulimina of the B. affirm type, in which the aboral half of the shell is 

 covered with a dense growth of short blunt spines, the remainder of the shell being 

 smooth. D'Orbigny's origiual finished " Planche incdite," which we have carefully 

 examined, entirely justifies Fornasini's figure, but d'Orbigny's type-specimens, Avhich we 

 have also examined in Paris, are so disguised in gum as to render their identification 

 with the " Planche " very difficult *. 



127. Bulimina aculeata, d'Orbigny. 



Bulimina aculeata, d'Orbigny, 1826, TMC. p. 269. No. 7. 



Brady, 1884, FC. p. 406, pi. li. figs. 7-9. 



12 Stations. 



Really typical individuals characterized by long projecting spines are somewhat rare 

 in the dredgings, but good specimens occur at Stns. 2 and 4, and w r eaker ones at several 

 other Stns. The semi-aculeate forms, inseparable from either this species or its ally 

 B. marginata, occur at practically all Stns. where either species occurs. 



128. Bulimina subteres, Brady. 



Bulimina subteres, Brady, 1884, FC. p. 403, pi. 1. figs. 17, 18. 



Heron-Allen & Earland, 1913, CI. p. 62, pi. iv. figs. 13, 14. 



* The relationship of Dr Carlo Fornasini's "Specie Orbignyane" to the "Planches iue'ditcs" requires to be explained. 

 D'Orbigny was an indefatigable and accomplished draughtsman, and left behind him not only the "Planches inedites" 

 of the Eoraminifera, but vast collections of similar drawings of fossils, all of which are now preserved in the 

 Directors Cabinet at the Musee de Pale'ontologie in Paris. As early as 1819 wo find his father writing to 

 51. Fleuriau de Bellevue that his son was making drawings of the " eephalopodes microscopiques " which they had 

 discovered in the sands near La Bochelle {Journal de Physique, 1819, vol. lxxxviii. p. 187). Later, when he began 

 to receive material from all over the world, he made a practice of first drawing the outline of all species as he 

 separated them, often roughly in pen and ink, under the microscope, indicating any surface-markings partially 

 upon his sketch, and making notes on the rough slips containing the sketches. These sketches he subsequent I y 

 elaborated in sepia or Indian ink, making fairly finished drawings, which he in turn copied, drawing most delicately 

 and beautifully in pencil and water-colour on sheets intended, when complete, to illustrate all the species enume- 

 rated in the 'Tableau Alethodique.' These constitute the "Planches inedites," which since 1826 hare remained to a 

 great extent an unexplored and practically unavailable store of priceless information. AVe have made it our duty 

 to examine these " Planches " in detail. Boughly speaking, there are 70 plates (7 unfinished) and materials for 

 finishing 79 more plates. We hope before long to arrange for the completion and publication of these plates ; 

 when it is done the names in the TMC. 1826 will no longer be for the most part nomina nuda. 



The outlines published by Dr. Foruasiui, scattered through some twenty-three memoirs and papers published by 

 him between 1898 and 1903, represent tracings made from the first rough working sketches (made by d'Orbigny 

 under the microscope) by M. Bertbelin, and bequeathed by him to Dr. Fornasini under circumstances which the 

 latter has recorded (Bend. Sess. B. Ace. Sci. 1st. Bologna, 1897-8, vol. ii. p. 11, footnote). M. Bertbelin appears 

 to have selected about 320 outlines for tracing, and these tracings Dr. Fornasini has carefully reproduced on a 

 fairly uniform scale. They cannot be said to compare for accuracy and beauty with the "Planches inedites," but 

 they afford a most valuable indication of what was in d'Orbigny's mind when he founded his multitudinous and 

 often unidentifiable species. 



