292 TROCEEDINGS OF THE MALAOOLOGICAL SOCIETY. 



Lindstrom's Oriostoma, which the authoress correctly discovered was 

 entirely different to Munier-Chalmas's shell of the same name and 

 earlier date (Quart. Journ. Geol. Soc, vol. Ixi, 1905, p. 575). 



Cyrtolites pharetra, Lindstrom. 

 Cyrtolites pharetra, Lindstrom: Kongl. SvenskaVet.-Akad. Handlingar, 

 Stockholm, vol. xix (1884), No. 6, p. 83, pi. vi, fig. 39. 

 Formation. — Ludlovian. 

 Locality. — Gothland, Sweden. 



Specimen showing spiral or longitudinal colour-hands ; a transverse, 

 ridge-like ornamentation forms the sculpture of the shell. 



Lindstrom's shell is said to measure 15 mm. in length, the published 

 figure being enlarged three times. 



EXPLANATION OF PLATE XXIV. 



Fig. 1. PoUjtropina helicina (Lindstrom). Siluriau, Sweden. Copied from 



original figiu'e. x 2. 

 ,, 2. Orthoceras anguliferum, Archiac & Verneuil. Devonian, Germany. 



Copied from original figure. 

 ,, 3. Naticopsis harpula (J. de C. Sowerby). Devonian, Germany. Copied 



from original figure (pi. xxxiv, fig. 5) of Archiac & Verneuil's Natica 



subcostata. 

 ,, 4. Moiirlonia carinata (J. Sowerby). Carboniferous, Yorkshire. Drawn 



from a specimen in the British Museum [G. 130]. 

 ,, 5. Capulus margarita, Boulger. Carboniferous, Ayrshire. Copied from 



original figure (fig. 1). 

 Figs. 6, 7. Platyostomella Scntohurdigalensis, R. Etheridge, jun. Carboniferous, 



Fifeshire. Exliibiting both the single and. the twinned stripes. 



Copied from original figures (figs. \a and 2). X 10. 

 ,, 8, 9. Strebhpferia unbhhata (Phillips). Carboniferous, Derbyshire. Ex- 

 hibiting both the single and the twinned stripes. Drawn from 



specimens in the British Museum [L. 10072]. 

 Fig. 10. Aviculopecten rugulosus (McCoy). Carboniferous, Kildare, Ireland. 



Drawn from a specimen (right valve) in the British Museum [30348]. 

 ,, 11. Sgncyclonema Sowerbyi (McCoy). Carboniferous, Kildare, Ireland. 



Drawn from a specimen in the British Museum [30346]. 

 ,, 12. Natica cincta, Phillips. Great Oolite, Stratton, Gloucestershire. Drawn 



from a specimen, with only the basal whorl preserved, in the British 



Museum [G. 1604]. 

 ,, 13. rseudomelania Heddingtonensis (J. Sowerby). Oxfordian, France. 



Copied from Orbigny's interpretation of this species (pi. ccxliv, fig. 4). 

 ,, 14. Cyprina lineolata (J. Sowerby). Cretaceous, Blackdown, Devonshire. 



Drawn from the original specimen (a right valve) in the British 



Museum [43104]. 

 ,, 15. Camptonecf.es cf. cnrvatus (Geinitz). Cretaceous, Zululand. Drawn 



from a specimen (left valve) collected by Mr. William Anderson, F.G.S. 

 ,, 16. Gryphaa colmnba, Lamarck. Cretaceous, co. Antrim, Ireland. This 



figure includes rather more than the half of a large specimen (lower 



valve) in the British Museum [L. 14399]. 

 ,, 17. Ostrea cf. curvirostris, Nilsson. ' Cretaceous, Bromley, Kent. Drawn 



from a specimen in the British Museum [44677]. 

 ,, 18. Neritinn concava, J. de C. Sov^erhy. Oligocene, Isle of "Wight. Drawn 



from a specimen in the British Museum [G. 17999]. x 2. 

 The figures on this plate, unless otherwise marked, are drawn natiural size. 



