Category: Science - Biology

A conchological manual

It may be necessary in introducing this little volume, to state, that it is strictly conchological, and that it is compiled for the use not only of those who wish to acquire an elementary acquaintance with the subject, but also of authors and others, who, desirous of extending...

Chapters

3. Part 3

When there is neither notch nor canal, anteriorly or posteriorly, interrupting the edge of the aperture, it is described as entire. When there is a notch or sinus at the anterio...

1. Part 1

It may be necessary in introducing this little volume, to state, that it is strictly conchological, and that it is compiled for the use not only of those who wish to acquire an...

2. Part 2

The same may be said respecting the bivalves; for besides the principal portions or valves of which the shell is composed, there are in many species, one or two smaller separate...

6. Part 6

ANOMIA. _Fam._ Ostracea, Lam. and Bl.--_Descr._ Irregular, inequivalve, sub-equilateral, foliaceous, pearly within; adhering to marine substances by means of a bony appendage, w...

28. Part 28

"It is unnecessary to dilate upon the splendid style in which this work is brought out, or on the ability and fidelity that characterise as well the figures as the descriptions...

7. Part 7

AZECA. Leach. _Fam._ Colimacea, Lam.--_Descr._ "Animal like Bulinus, with subcylindrical, rather obtuse shell, covered with a polished periostraca (epidermis); aperture pear-sha...

10. Part 10

COLUMBELLA. Auct. (Columba, a dove.) _Fam._ Columellata, Lam.--_Descr._ Thick, oval, or angular; with short spire, and long narrow aperture, contracted in the centre, and termin...

24. Part 24

TEREBELLUM. Lam. (_Terebra_, an augur?) _Fam._ Convolutæ, Lam. Angyostomata, Bl.--_Descr._ Smooth, slender, oblong, sub-cylindrical; spire obtuse, short, sometimes hidden; (Sera...

8. Part 8

CALCAREOUS, (_calx_, lime.) A term applied to a shell or to its operculum which is composed principally of lime or shelly matter, as is usually the case, in distinction from one...

4. Part 4

In the foregoing explanations we have omitted many of those general terms which, relating to external characters, are applicable to shells in almost every division of the system...

18. Part 18

NERITOPSIS. Gray. _Fam._ Neritacea, Lam.--_Descr._ Sub-globose, thick, cancellated; spire short, composed of few rapidly increasing whorls; aperture transverse, sub-orbicular; o...

9. Part 9

CELLULACEA. Bl. The second order of Cephalophora, Bl. consisting of doubtful microscopic bodies, with a number of variously arranged shells, as distinguished from the true Polyt...

12. Part 12

CYRENA. Auct. _Fam._ Fluviatile Conchaceæ, Lam. Conchacea, Bl--_Descr._ Suborbicular, equivalve, inequilateral, ventricose, corroded at the umbones, thick, covered with a thick...

20. Part 20

PHOS. Montf. _Fam._ Purpurifera? Lam.--_Descr._ Turrited, thick, cancellated, varicose; spire pointed, generally longer than the aperture; aperture rounded or oval; outer lip ha...

21. Part 21

POTAMIS or POTAMIDES. Brong. A genus of fresh-water shells resembling Cerithium in the characters of the aperture, but which may be known from that genus by the thick, horny epi...

5. Part 5

ACAMAS. Montfort. BELEMNITES multiforatus, Blainville. A species described as being perforated at the apex, by a stellated perforation. No species of Belemnite at present known...

17. Part 17

MONOICA. Bl. The second sub-class of the class Paracephalophora, Bl. divided into the orders Pulmobranchiata, Chismobranchiata, Monopleurobranchiata, in the first section; and A...

11. Part 11

CORONULAR MULTIVALVES are those which have their parietal valves joined together side by side in a circle, surrounding the body of the animal, so as to form a sort of coronet. T...

19. Part 19

PALLEAL IMPRESSION. (_Pallium_, a mantle.) The mark or groove formed in a bivalve shell by the muscular attachment of the mantle, which, being always found near the margin of th...

16. Part 16

LUTRARIA. Auct. (_Lutum?_ mud.)--_Fam._ Mactracea, Lam.--_Descr._ Thin, equivalve, inequilateral, transverse, oblong or ovate, gaping at both extremities; hinge with one double...

15. Part 15

LABIUM, or inner lip,--is used to express that side of the aperture which is nearest to the axis and generally contiguous to the body whorl. The lower part of this, when suffici...

22. Part 22

RHOMBOIDAL. ([Greek: rhomboeidos], _rhomboeidus_.) Having a rhombic form, i. e. four-sided; two sides meeting at acute, two at obtuse, angles. Conchologists are not very strict...

13. Part 13

ERATO. Risso. _Fam._ Convolutæ, Lam.--_Descr._ Ovate, more or less angulated, smooth or granulated, with a dorsal scar; spire short; aperture large, angulated, emarginated; colu...

14. Part 14

HARPA. Brug. (_Harpa_, a harp.) _Fam._ Purpurifera, Lam. Entomostomata, Bl.--_Descr._ Oval, ventricose, longitudinally and regularly costated; spire short, with rounded, dome-li...

23. Part 23

SIPHONOSTOMATA. Bl. ([Greek: Siphon], _siphon_; [Greek: stoma], _stoma_, mouth.) The first family of Siphonobranchiata, Bl. the shells of which are extremely variable in form, b...

25. Part 25

TURBINATED. (_Turbo_, a top,) Top-shaped. The term is applied generally to those shells which are large at one extremity, and narrow to a point at the other. _Ex._ Trochus, fig....

26. Part 26

545. Priamus. Achatina priamus, Auct. The propriety of placing it in this family will depend upon the correctness of the statement made by Dr. Beck that this shell is marine, an...

29. Part 29

This is the only work which, in a moderate compass, gives a comprehensive view of Conchology, according to the present advanced state of the science. It will not only be found u...

27. Part 27

CONCHIFERA Dimyaria _Tubicolaria_ Aspergillum, Clavagella, _Bivalve._ Fistulana, Septaria, Teredo, Teredina. _Pholadaria_ Pholas, Gastrochæna. _Solenacea_ Solen, Panopæa, Glycim...