1. Trang chủ
  2. » Ngoại Ngữ

CONCHOLOGIA ICONICA V16

548 50 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

CONCHOLOGIA ICONIC A: ILLUSTRATIONS SHELLS OF MOLLUSCOUS ANIMALS MONOGRAPH OF THE GENUS Unw R.I Sowerby.Jd et liih Vmcau Brooks IrnjT U N UN lO Genus I Society, mcrly disgraced the Proceedings of the Zoological Academy of Natural still appear in those of the Ret: and (pqiiii-alrh, sapis-viui' ni,r-qi(ilnteJ>sta Iii/ms marf/ari/ncca, rnlU, cvii-yjirna.iemper indnta pphkrmhh- exteniinii iralihits lamellis deidi/jiis variabilh, cnrilo ,• specified Sciences of I'liiladelphia, the few characters there U.jammitam ; antkii vd j clotlied with of sculpture nary Uiiio, devoid of any striking peculiarity without the or of contour, cannot possibly be determined j aid of a really elaborate It muscular sears two the hinder simple, a methodical, and as Unio name to the conglomerated aggregate that not one-half of the | ' many of eritieism Scarcely any of the shell-collectors of such sombre-hued objects for ; hence the cabinets of Taylor, Hanley, and the British ; volumes of the his lateral i,,i\., are i ' h, so two latter, possibly, from want of exploration) are Species (Mus Cuming.) ; dence of eacli other the former tlie latter As for the more usually from from prior readings to sucli brii I' most part claim prece- on no common ground for arl)itration prior publication in at some scientific alike sparingly provided with Naiades most neverother genera), priority of nomenclature involves a for Conrad and Lea (both natuending investigation ability) shell only, are of less poor, since British be excepted) seems comparatively fairly although its conehologieal fauna has been naturalists as Theobald, worke'd out by such enthusiastic a than more adds scarcely Benson, and the Blandfords, Europe, Africa, and Australasia (the score to our list omnivorous Independently of the remarkable diversity of outline eminent Iconica,' compelled India, almost our sole sources of study ralists of ' gradually changed views of to j the male and female of each species (ditt'erences far as we know, are comparatively imperceptibh but earlier us as care Museum, laraellse, ca now furnish the The United States of North South Auieriea, if great bulk of the recorded species energy, will probably yield ever investigated with equal many distinctive forms Asia (China has, perliaps, here England genus Am delineaunavoidably omitted, from want of specimens for tion so extensive a present importance more than probable ovir North distinct forms have been tiiat the present work, and the and Phgioduu, each based upon one presumed species of of their really in had, perhaps, mentary compressed tubercle in each valve, it Anodon Ingunoiloi, better have been wholly relegated to doubted which) will stand the crucial test American cousins yet It is is he wished Almmodonta, with its two prunary and Monocondyl^a, with merely one primary from the tooth and no lamelte, are easUy distinguishable As io P.eudodcn, with its single rud.typical U.mm „o veteran, been described, and every year that indefatigable adds bewdIsaac Lea (the loving patron of the Naiades), (it defined that original design thousand so-called species have already dering varieties, forms, or species ill shells least, of his natural groups, to preserve the outlines, at j (^,reat Systwo or three only were distinguished by the Indeed, tematist are now known to us by hundreds methin- was not subdivided author, despite of tlie ! the oenen («nch as typical Mya) have not even tripled in which number of known species, whdst the Uuiom-s, of like a perhaps, to be regretted adopted in the I and natural period,' certain early-appreciated Since that what provided witii restricted to such species only as are the broad Lamarckian divisions, lateral comprehensible manner easily is, ' yet artificial, difler as to I hundred years have elapsed arranged shells in an first Say's earlier species (those in the American to indicate ! LinuEnus it even his own countrymen one composite Somewhat more than and naturalists have the ])atience to edition of Nicholson's Cyclopedia) are so hinge variable, furnished with one in each valve, and or f.vo central or anterior teeth for the most part, by lateral or besides, strengthened since figure, or of a description so long modern careful that few ' ; posterior lamellae; good I ciuderuiis conspicuous a ordi- i composita pressiones muscnlares d/KP, poxtica equivdve, almost always inccimlateral, iSlR-11 pearly within, liirament external An to a score of other shells would equally apply ceil- 1-3 instrudus, srrpnis etiam ii< vtrdqne vahuln imlateralibus vi-l jmiicis pmterea mimiliis; constantly o BOYKINIANUS Un tentd mafjis iiiiviisn' rrassu, uhuialo-sub-^ medio veiilricosa, valde uMijiiituUrali, rolundald, poslice tri,iond,antici perbrevi angustatd el 1,1 : |)rint meeting and utterly iiuidequalr diagnoses as for October, ISOS olivaceo-nigresci lata depressd et alatd, oneolore, saljamwtis aut Jl, (d srrjie plicis vudtis obliquis UNIO.— Plate fiircalis) ceiUe triguitis, ereclls, lacinudk above with a short broad central green margarila albklo-candes- ; utrCujHe in coLABRIFEKA OLIVACEA ; rodro prodiiciu, Irigoim iipice caUvno bilobalo The OLIVACEOUS Uolabrifera Species DoLABRIFEUA il (Fig a, ]\Ius AsciFEKA gond, obloiiyd, crassri, Brit.; Dol b, oblong, radiately depressed in the middle; margins copied tntd quadfalo-nuhln- irreyitlnri, tortud ; Irorso, brevi, trigono ; apice calloso, lobtUo hamVi paulo couccxo ; margiiii- cxteriio roslro n- sti-aight, square ; callous, bilol)ed Pease ; Shell narrow, straight, iiiargitie medio mhcon- Hab Sandwich islands 168 P beak produced, trigonal ; apex ... (the score to our list omnivorous Independently of the remarkable diversity of outline eminent Iconica, ' compelled India, almost our sole sources of study ralists of ' gradually changed views

Ngày đăng: 06/11/2018, 23:25

Xem thêm:

TỪ KHÓA LIÊN QUAN

TÀI LIỆU CÙNG NGƯỜI DÙNG

  • Đang cập nhật ...

TÀI LIỆU LIÊN QUAN