316 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 57. 



The specific distinction of this species from G. vitreus, sphenoideus, 

 and others, which I affirmed in 1871, has been amply confirmed by 

 the researches on its spiculation by Doctor Blochmann. 



GRYPHIJS SUBQUADRATUS Jeffreys. 



Terebratula subquadrata Jeffreys, Proc. Zool. Soc, 1878, p. 402, pi. 22, fig. 3. 

 Liothyris subquadrata Davidson, Mon. Rec. Brach., pt. 1, p. 14, pi. 2, figs. 15, 16, 

 1886. 



Type locality. — Off the Setubal coast of Portugal near the mouth of 

 the Tagus River, in 500 to 600 fathoms; Saville Kent. 



Cat. No. 



Locality. 



130336 Off Setubal, 5-600 fathoms. 



130337 Off Setubal, 5-600 fathome 



130338 Bay of Biscay 



Collector. 



S. Kent... 

 Davidson . 

 Travailleur 



Number 

 of speci- 

 mens. 



Remarkable for its widely spaced, minute, but sharp radiating 

 threads, 



GRYPHUS SPHENOmEUS Philippi. 



Terebratula sphenoidea Philippi, En. Moll. Sicil., vol. 2. p. 67, pi. 18, fig. 6, 1844. 

 Terebratula vitrea var. sphenoidea Jeffreys (ex parte) Proc. Zool. Soc, 1878, p. 404, 



pi. 22, fig. 6. 

 Lyoihyiis sphenoidea Davidson, Mon. Rec. Brach., pt. 1, p. 12, pi. 2, figs. 17, 18 



(only) 1886. {L. cubensis synonyms excluded). 



Type locality. — For the original fossil; Pliocene of Lamanto, 

 Calabria, Italy. For the recent shell ; west of Portugal in 374 fathoms, 

 Porcupine Expedition. 



No. 109700 exhibits a few microscopic threads laterally, resem- 

 bling those of G. subquadratus. I do not feel altogether satisfied 

 that the recent specimens collected by Jeffreys are identical with 

 the Pliocene fossils although they are certainly quite similar. The 

 latter average larger and more inflated and have a much thicker and 

 more solid shell, judging by a large series received from Seguenza. 



