6 



E. BUUms — New Species of Strkklandbda. 



gonvis inch.ul(!s tJu-eo l'^i\t;lKsLL species, wliioli liavc Ih-ch lonjj known 

 under ibe names of Pt'.nlamvrus le.m, P. I! rains. ;uui ./'. Ifcvis,'' J waw 

 jiwaro that the P. {(Pvia of J. 8(.>w*'rhy was the young of P. Dhlonijwi, 

 aii'I supposed (iiat the namo had (jeeoitie ohsolete as to its first 

 application. In that cmm? Spirifiraf heriK, ,1. do 0. Sowerby, which 

 \vas a true renlamf:rus, as thogeiuih was tlicii understood, l)eeame 

 r. bnh. That this is <he on'- 1. had in view may he seen by the 

 remark -piotrd. from my Pah F'iss... p. 84, by Mr. hiavidson in liis 

 " Monograph,'' p. 158. Tlio sentence is irregular; but it was iu- 

 tt'iidi'd to reail thus, "The liingr-line in so)nc of the spt-eie^, such as 

 in iS. lavis and «S. micrucaimnis, is straight and much (Ateuded."' 

 ''I^liis eouM not possibly api.ly to the original P. / vis, wliich has no 

 iiinge-line at all: but it does apply to tlie ligure of Spirifi'ta ? h^iis 

 aliovc cited. There is not the .sliglitest trace of ;iny el' the generic 

 characters of iStr><'k!ai'(i(niii. in J, iSovorl.'y'.s lignre of P. litvis. and 

 it is impossible that 1 could biive intended t() include it in my g\ nus. 

 Si'AV'ral years bet'jre 1 propi>.sed Sftirl-Jaudhiia 1 was under the 

 impression that P. lei'ls was the young of F. (M(>v<ihh iVom crim- 

 paring onr own specimens, one of which i have tigured ( l''ig. 'A) ; 

 and ill ISoH 1 was informed, I tlti^ik by Mr. Salter, thai it was so 

 regarded ir; Engl-nid. 



EXl'LAN.M'ION OF 1M..\TE TV, 



Fitj. 1, — Sfri(HnniJliiiii Ijiirihtivn^ vtiilral v;ilv(, ; \a, dnrsai valve; I''', lardinii} 

 (:\tii!mity ; \i\ side view; \il, (.nidiiial view of a jnuill spetaniop, A\:th 

 'h nks j^rouiid oti' to ^Kdw llu; ('hiimbiT ninl septa. 



Fig. 2. ■..■■rk-ki'nidhiia i^oJier'J., veiitrul vaUe. t!i.: liulit-liiitcil CMidiiiul aii.irk' ro- 

 ^tor' il. 2a, vvntiiil Viilve, botli fanlinal anglis rcstDrcd. 



Fig. W, — Young' i-.f Pnifanurm ohlutujus, from the Xiaa'arn Hnu'Stoiii'. at; Oocklnirn 

 J.-^iand, Lako Huron. Wlu'ii I road the \y\\MX on StrKklamUnin in 

 iMiinli, 1859, I exhibited to the Natuial Ili.stdry Society of Montifil 

 !i irpt'cimcu )u.st like tliis, mily ii litllo li)i!>'i'r, in onU'v to sliow tl?c; 

 ditt\.reiicc tietwci'ii rfotninrinx and SfrkklaDdinin. — E. B, 



»TEJ>HBN ATIST3K, VRiyTEH, HEHTFOBD. 



