1881.] 'lightning/ and 'porcupine' expeditions. 933 



Allied to Verticordia axinoldes of Segueiiza, a Siciliaa Pliocene 

 fossil, but very much smaller and not so deeply sinuated on the pos- 

 terior side. 



I 5. Pecchiolia angulata', Jeffreys. (Plate LXX. fig. 6.) 



Shell lengthwise oblong or shaped like a Mytilus, angidar and 

 crooked, gibbous in the middle, rather solid, opaque, and lustreless : 

 sculpture, numerous minute tubercles or short prickles arranged 

 lengthwise in rows : coloui- yellowisli-white : epidermis apparently 

 wanting ; margins rounded on the anterior side, sloping in front, 

 nearly straight on the posterior side, triangular at the back ; beah 

 blunt, twisted inwards : I mule small: cartilaffe-pii nurrow : hinr/e- 

 plate rather broad, folded outwards : inside nacreous : scars incon- 

 spicuous. L. O'SS, B. 0'2. 



'Porcupine' Exp. 1870: Atl. St. 24 (a single and imperfect 

 valve) . 



Distribution. Off the Josephine Bank ('Josephine' Exp.); 340- 

 430 fms. A small single valve. 



6. Pecchiolia granulata, Seguenza. 



Verticordia granulata, Seg. in Journ. Conch, viii. (18G0), p. 293, 

 pi. X. f. 2,/-A. 



V. trapezoidea, Seg. Ace. Sc. fis. e mat. 18/6, p. 7. 



' Porcupine' Exp. 1870 : Atl. St. 2, 3, «, 8, 9, 27-29 ; Med. 55, 

 Adventure Bank, off Rinaldo's Chair. 



Distribution. Oft" Tripoh coast in 'Shearwater' Exp., Palermo, 

 Hydra Channel G. Egina, G. Mexico off Boca Grande, Gotto Is., 

 Japan ; 66-1 G2 fms. 



Fossil. Miocene : Calabria, Madeira. Pliocene : Calabria, Sicily. 



Verticordia multicostata, A. Adams, 1862, I regard V. trape- 

 zoidea of Seguenza as the young of the present species. Both 

 occurred in the ' Porcupine ' Expedition. The size of my largest 

 specimen is Sj tenths long and the same in breadth. The right 

 valve has a tooth-like callosity under the lunule, and a laminar lateral 

 tooth on the posterior side. 



7. Pecchiolia acuticostata, Philippi. 



Hippagus acuticostatus, Phil. Moll. Sic. ii. p. 42, t. xiv. f. 19, 

 a, b, c. 



' Porcupine ' Exp. 1870 : Atl. St. 24-28a ; Med. 55 (fragment). 



Distribution. G. Mexico off Rebecca I., off Barbadoes (' Blake ' 

 Exp.), Azores ('Josephine' Exp.), Japan; 71-600 fms. 



Fossil. Pliocene : Coralline Crag, Calabria and Sicily. 



Hippagus verticordius, S. V. Wood, MS. ; H. cardii/ormis, J. 

 Sowerby; Verticordia deshayesiana, Fischer; V.japonica, pL.KA&ms. 

 My largest specimen is 5^ by 4| tenths. The tooth-like protuber- 

 ance is very prominent. Coralline Crag specimens are smaller and 

 flatter ; the tubercles (or " spimdce," as Mr. Wood called them) are 



■ Angular, 



