Illustrations of the recent conchology of Great Britain and Ireland, with the description and localities of all the species, marine, land and fresh water

Co:..cnArn.,.] MOLLUSCA. 101 G. 'l'ELI.tNA FAUULA, pl. XL, f. 18. Tellimt Fabula, First Ed., pl. IG, f. 18; Donornn, III, pi. Oi; l\fontagu, p. lil; Tmt on, Biv., p. 101; l\faton and llackett, P· 52; Fleming, p. ·135; Leach, l\ISS., p. 7; Drown, Wernerian l\Icm., Ir, p. ii07. Shell trans,·ersely elongated, thin, pellucicl, much compressecl, :tll(l flc:rnous ; anterior sicle narrowed ami obliquely subtrun- cated, opposite sitie well rounclecl; umbones vcry small, nearly central, with a slight inclination to the cartilage side; colour generally white or pale yellow, frec¡uently with a deeper tinge towards thc umbones, ami often exhibiting iriclescent reílections; the left ,·ah·e with very fine, regular, longitudinally diagonal stri.u, oblic¡uing from the superior portion of the posterior side towards the base; the right rnh-e quite plain, or with remole, irregular, concentric, obsolete stri.x:; hinge with three teeth in the left vah·e, one of which is lateral, but not ,•ery remote from the cardinal ones; the right valve with only two cardinal teeth; inside smooth, glossy, white, with generally a darker tinge towards the hinge; margins plain, and very sharp. This shell is liable to some variety, the diagonal stri.:c in vari- ous specimens only reaching a liltle more than half way along the posterior sicle. Distinguished from T. tcnuis, by its more lengthened ami more acute anterior side, ancl especially by the left. valve being <liagonally striate. The two species are frequcntly found mixed in cabincts. Inhabits many sancly bays in Dritain all(l Irelan<l. 7. TELLINA SIMILIS, pi. XXXIX, f. 35. Telli1w similis, Sowerby, Brit. Miscell., p, 29, pi. 75; Mon- tagu, Sup,, p, 167; Turlon, Biv., p. 102; Fleming, p. 435. "Shell ovale, compressed; both valves diagonally striated fil'e-sixths over the surface; beak not curvecl."-Sowe1·b_y. Sowerby remarks that great simili tude cxists between this shell and the T. Fabulct, but differs in beiug rounded at the n:irrower sidc, all(I de;;titute of the curvature, and in both rnlves heing cliagonally striate<l. F ound on the shores of Brighton, in company with Tellina Fabula. 8. TEl,l,INA EI.Lll'TICA, pl. XL, f. 20, 2 1. Tellina elliptica, First E<\., pi. 16, f. 20, 21; Tellina pla11ata, Pennant, IV, p. 87, pl. 48, f. 29. Shell elliptical, smooth, glossy, crcanMl'hite; umbones small ami acute, placed much to one side, which is a little contracted, the other amplc all(l rouncled; hingc with three carrlinal teeth in each valve, but no lateral teeth; insicle smoolh, white, all<l glossy; margins plain, and sharp, Length a quarter of an inch; breadth thrce-eighths. Founcl at Dunbnr, by the late General Richard Bingham. g, TELLINA (>I,l,l,UCIDA, pi. XL, f. 22. Tellina pellucida, First Ecl., pi. 16, f. 22. Shell transl'erscly oblong-o,·atc, very pellucid; umboncs con- sidcrably produced, placed much to one side, but not inllccted ; anterior siele very short ; posterior siele large, nll(I clongatecl ; colour bluish-white; with numerous, very fine, concenlric, ncarly obsolete stri.x:; hinge with two primary teeth in ench valve, but <lestilnte of lateral tceth. Found al Seaton, County of Durham, by \V. C. Trevelyan, Esq., ali() afterwar<ls at Dunbar, by General Bingham. 2c 10, TELLINA S0LIDUt..\, pi. XL, f. 14. T1:lli1w solidula, First Ed., pi. 16, f. 14; J\fontagu, p. 63; l\faton and Hackctt, p. iiS; Forbcs, p. 46; Psammobi<t soliifola, Turton, p. 95, pi. 8, f. 2; Flcming, p. 438; Telliiw ca1'11a1·ia, Pennant, IV, p. SS, pi. 32, f. 32, left hand figure, all(I f. 32 A; Limecola solidula, Leach, MSS., p. 7. Shell strong, thick, convex, suborbicular; anterior side a little produce<l into a subacute beak, 011 which sicle the line from thc umbo clownwards is considerably more parallel than the othcr, and with a widc, longitudinal dcpression; posterior side well rounded; umbones placed uearly central, :md rather blunted, hardly turning to either si<le; exterior surface dull, of various colours, yellowish-white, yellow, citron, ílesh-colour, ami ro~y red; some plain, others bandecl or zoned; hinge with two small teeth in both rnlves; inside glossy, all(I of the same colonrs a~ the exterior, but the tints in general more l'Í\·id. Somctimes measures an inch in length; and :m inch ancl a qnarler in breadth. Inhabits most of the coasts of Dritain ancl Irelall(l, ami bur- rows in sand four or five inches beneath the surfacc. 11. TEI,LINA DoNACINA, pi. XL, f. 16. Tellina Donacina, Firsl Ecl., pi. 16, f. 16; J\Iontagu, p. 58, pl, 27, f. 3; l\faton nll(l llackelt, p. 50, pi. 1, f. 7; Turlon, ¡,. 102, pl. 8, f. 4; Fleming, p. 435; Tcllinci t,,ifasciata, Pennnnt, IV, p. 88. Shell trnnsversely oblong-o,·ate, thin, compressed, subpcllucicl; umbones very small, placed much to one side; onc side sub- truncated, short, ali(! terminating in a short beak below; thc opposite si<le much 9Í~ngated, ancl roun,led; basal line nearly parallel, or ,·ery slightly arcuated; surface of a pale gamboge- yellow, with numerous, fine, concenlric striro, beautifully radi- ated, with interrupted rays of deep carnat ion ; and also with lrans,·et·se zones in many specimens; hingo with two tceth in one rnlve, that behind the umbo extemling into a lateral lamina; an<l a single tooth in the opposite valve; insicle smooth, glossy, genernlly of a rich yellow, ali(! frec¡uently with radiations cor- responding to those of thc oulside; somo specimens are nearly white, with, howe,·er, almosl invariably a roseate mark beluw the umbones. General length about half an inch ; breadth three-quarters. This is one of the most benutiful of our British bivah·es, nml inhabits sancly shores. Salcomb Day, De,·on; Sandwich, Wcy. mouth; Dublin Bay, Portmarnock, ancl I3antry I3ay, Ireland ; and the Friths of Forth and Clyclc, Scotlan<l. GENUS 25.-PsAMMOmA~Lamarek. Shell lransverse, oblong, somewhat angular, gaping at eacl1 extrcmity, and covcrecl with a lhin, horny epidermis; with lwo short, bificl, cardinal ter.th in the left valve, ami onc in tite right vall'c; two dislnnt, suborbicular, muscular impre~sions in both vall'es, situate ncar each cnd of the vahe; pallial imprcssions with a ,·ery large sinus; ligament externa!, ami supportcd upon n promincnt fulcrum. l. PsAMMOntA FEnnoEss1s, pi. XL, f. 1, 2. Psammobici F e1Toe11sis, Firsl Ed., pl. 16, f. l, 2; Turton, Biv., p. 9-1; Fleming, p. 438; Forbes, p. 55; Maton and