38 Mr. T. Davidson on Recent Terebratuke. 



bratella, which Prof. Suess considers to be a distinct 

 species. 

 31. Terebratella spitzberyensis, Dav. Hab. Spitzbergen. This 

 shell and its interior has been recently found and figured by 

 Otto Torell, in his ' Bidrag till Spitsbergens Molluskfauna,' 

 taf. 1. fig. 1, 1859. 



B. Species! in %vhich the septum is more or less prolonged above 



and beyond the second attachment of the loop, and which 

 certainly belong to Terebratella. 



1 32. Terebratella flexuosa, King. Hab. Straits of Magellan and 

 vicinity of Port Famine. This has been considered by 

 many authors a synonym or variety of T. magellanica, 

 which is probably a correct view ; but as the interior dis- 

 positions are somewhat different from those of the last- 

 named shell, further research will be desirable before 

 King's species is united to that of Chemnitz. 



? 33. Terebratella cremdata, Sow. Hab. Santa Cruz?; Canaries. 

 I quite agree with Mr. Reeve in the idea that this shell has 

 much the appearance of T. labradorensis, and may be also 

 a young condition of T. magellanica 1 

 34. Terebratella Valenciennesii, Dav. Syn. T. Evansii, Dav.? 

 Hab. New Zealand. May not this be a young state of T. 

 cruenta 1 



C. Species whose exact generic position is uncertain, but which 



possess a loop very similar to that of Terebratella. 



?35. Terebratella! Cumingii, Dav. Hab. New Zealand. 



?36. Terebratella! fibula, Reeve. Hab. Bass's Strait. I have 

 already alluded to the difficulties attending the proper 

 classification of these two species, which have been placed 

 by Mr. Reeve with Bouchardia. 



Subgenus Bouchardia, Dav. 



37. Bouchardia tulipa, De Blainville. Syn. T. rosea, Humphreys 



= T. roseus, King=7 1 . unguis, Krister. Hab. Brazil. 



Subgenus Megerlia, King. 



38. Megerlia truncata, Linn., sp. =Anomia disculus, Pallas = 7\ 



scobinata, Gmelin = T. decussata and T. irregularis, De 

 Blainville = 7'. monstrosa, Scacchi=T. oblita, Michelotti, 

 Hab. Mediterranean ; Cape Finisterre ; Canaries. 



39. Megerlia sanguinea, Chemnitz. Syn. T. pulchella, Sow. 



Hab. Philippine and Sandwich Islands ; was also recently 

 dredged at Tahiti by M. Deplanche. 



Another species ?, Megerlia transversa, Gould, MS., is 

 described by Prof. Suess in his 'Wohnsitze ;' but 1 know 

 so little about the shell, that I cannot venture to add it to 

 the present list. 



