1878.J Lightning' AND 'PORCUPINE' EXPEDITIONS. 411 



supp e orth a t h Lr e T S ° f t , he -° Cean - Jt is clearl ? unscientific to 

 suppose that, because .4. capsula is tiny, it cannot be a good species 



in whatever genus it ought to be placed. Until there is & some P proof 



moZedZ ^ in th T hSenUS o(Ar 9iope, for which Dr. King 

 pioposed the generic name Gwynia. s 



Genus IV. Platydia. 

 v/ Platydia anomioides, Scacchi and Philippi. 



Orthis anomioides, Sc. & Ph., Moll. Sic. ii. p. 69, t xviii f 9 

 .'Porcupine' Exp., 1869.: St. 78, 290 f. One of my specimens is 

 twice the length of any I have seen from the Meditirmnean tl e 

 other is minute of an oval shape, and apparently abnormal ' 



40 Too f ? rt ."f gal f $°£ ( ? ent)!; Medite ^nean and .Egean, 

 « ♦! 1 \'\ ° f F1 ° nda ' 237f - ^ Dall )5 'Challenger' Exp 



1 "ftfl « specimen of IFaldheimia kergudensu,* St 45" 



(DavlSsol)! ' g ' ^ 5 °' K ' ° ff PHnCe - Ed - rd U* ™ I 



One of my Tunisian specimens is acutely triangular. The lower 



valve is sometimes more convex than the upper, as in Anomia 21 



pium owing to the habit this Brachiopod has of attach?n?S 



sTlanr 3 ^ * "" "** ^ to «»* ™* SSjS^ 



This is the Terebratula appressa of Forbes, who published it in 

 the same year as Phihppi. Mr. Dall referred to this species the 

 OrtAiseusticta of Philippi; but that is a species of MegerUa and 

 very different from this. According to Professor Sefue, a the 

 young of P anomioides is the Terebratula seminidum of Ph/ nppi 



Mr. Davidson proposed the genus Morrisia for the present specie • 

 but, with true scientific candour, he gave it up in favour of pE 

 which had been described by O. G. Costa a few months pr v on ly 

 in the same year In the 'Annals' for December 1855, P h ap„ a - 



Td 'n TuT; 86? ^r^ rJ Me9erlia SUb ^" era ° f KrZafeZ, 

 and in J uly 186 1 he queried Morrisia as a distinct genus. However 



lis present scheme of classification is much more Satisfactory 2 

 I will not presume to criticise it. y ' 



Genus V. Megerlia, (Megerlea) King. 

 Megerlia truncata, Linne. 

 Anomia truncata, L. S. N. p. 1 152. 

 M. truncata, B. C. ii. p. 22 ; v. p. 1 64. 



'Porcupine' Exp., 1870: Atlantic, 'st. 24, 292 f. (and var 

 monstruosa); 36, 128 f. Mediterranean, 45, 207 f. (and var ) 



JW*<mSS f° f l™" ^ ***£' Mediterra "ean, Adriatic, and 

 £\£ 60 f « rin ° ape ,°V G ° 0d ?T' 224 f - (and Var ")- Ca »^y 



Bourbon I'm f ?n ? Iger E *P- ° ff Te " eriffe ' 70 ~ 75 f " ^ of 

 «ourbon, 200 f. (Deshayes, as Morrisia gigantea). Australia (Angas 



