350 Mr. J. G. Jeffreys on recent species of Odostomia. 



Var. b. spira elongata, anfractibus magis compactis. 

 Coast of Devon (Mr. Richard Damon). 



Var. c. minor, spira et anfractibus compactis. 

 Oban. Torquay (Dr. Battersby). 



A rare species. 



Not the Rissoa acicula of Risso. 



Fresh specimens are most minutely and closely striated in a 

 concentric direction. 



The variety a. may possibly be considered a distinct species ; 

 but judging from its analogy with other species of the same ge- 

 nus, I do not consider the distinctive characters sufficient to jus- 

 tify my separating it specifically. 



32. Odostomia affinis. 



Parthenia turris, Forb. ^gean Invert, in Brit. Assoc. Rep. 1843, 

 p. 188? 



Eulima affinis, Phil. ii. 135. tab. 24. fig. 7 ; JeffV. in Ann. Nat. 

 Hist. 1847, p. 17. 



Eulimella gracilis, Jeff'r. in Ann. Nat. Hist. 1846, p. 311. 



Skye. Oban; Loch Fyne ; Guernsey (Mr. Barlee). 



A local and rare species. 



I cannot identify any of these shells with the descriptions and 

 figures in Gould's Report on the Invertebrata of Massachusetts, 

 although Loven has referred the Odostomia scalaris to the Tur- 

 ritella interrupta of that author and Totten. 



The Odostomia semicostata and Marionce of Macgillivray (Moll. 

 Aberdeen) are the young of Rissoa communis. 



On taking a review of this catalogue it appears that the total 

 number of species here noticed and described are thirty-two ; out 

 of which nine (viz. notata, alba, dubia, acuta, diaphana, dolioli- 

 formis, fenestrata, clathrata and formosa) have been now for the 

 first time described, and one (clavula) is new to this country; 

 nine of the species (viz. conoidea, indisiincta, excavata, scalaris, 

 rufa, lactea, Scillce, acicula and affinis) have been described and 

 figured by Philippi as occurring on the coast of Sicily. Another 

 species {interstincta) has been described by Recluz as occurring 

 on the coast of Normandy. Ten species (viz. scalaris, rufa, 

 Scillce, clavula, insculpta, conoidea, spiralis, albella, unidentata 

 and pallida) have been noticed by Loven as inhabiting the Scan- 

 dinavian coasts. Seven only (viz. conoidea, indistincta, pellucida, 

 excavata, scalaris, rufa and lactea) are included in Wood's list of 

 the Crag fossils ; and one species [lactea) seems to be indigenous 

 to the middle and south of Europe, but not further north than 

 Scotland. 



Before concluding, I would take the opportunity of expressing 



