403 
It is evident that Linneus, in the tenth edition, regarded the spined 
form as the type, figured by Rumphius, from whom the specific name 
was borrowed. This is still more evident by the synonyms of the 
variety /3, which all belong to the subgenus Siliquarius. Rumphius 
says his shell is white, which proves it must be S. muricata, Born, 
and not the following. In the Linnean collection, according to Mr. 
Hanley, several species of Tenagodus are to be found. 
2. TENAGODUS RUBER, (Anguinaria) Schum. 1817. 
Differt a precedente. T. gracilior solidior et tamen liris 6 validio- 
ribus interstitia fere equantibus. Squame parve, in liris in- 
ternis approximate ; lire externe rudes, obsoletissime nodu- 
lose ; interstitia costarum foveis quadratis obsoletis. Sculptura 
aperturam versus obsoleta. Color saturate purpureus. 
Long. 24-25 em., alt. ap. 6-7 mm. 
: Anguinaria rubra, Schum. Essai, 1817, p. 262 (excl. syn. Mart. 
. 13, 14). 
Siliquaria muricata, B, Lam. Hist. v. 338?; Chenu, Illustrations, 
p. 2. pl. 2. £14? 
Siliquaria suleata, Gray, List of Genera, Proceed. 1847, no. 261. 
Hab. Moluccas.—One specimen in the collection of Mr. Cuming ; 
gent ten specimens are found in the different collections of Copen- 
agen. 
3. TeNnaGopus Potyeonus, (Siliquaria) Blv. 
Var. Dunkeri. 
T. annulatim convoluta, liris prominentibus et regularibus 10-11, 
externis validioribus, internis approximatis parvis, syuamis mi- 
nutissimis (detritis) ornatis. Interstitia lirarum plana trans- 
versim rugulosa unde irregulariter foveolata. Rima regula- 
riter pertusa, aperturam versus utrinque denticulata, poris 
elongatis approximatis, dissepimentis angustis arcuatis. Color 
eretaceus pallidissime roseo-tinctus. 
Long. 221 decim., alt. aperture circ. 6 mm. 
Specimen dealbatum extat in coll. cl. Dunkeri. 
Perhaps this variety might prove a distinct species ; but as I have 
not seen the 7’. polygonus, I cannot yet decide the question. 
Subgenus Srirquarius, Montfort. 
T. spiraliter (plus vel minus) contorta, substantia calcarea molli, 
cortice peculiariter transversim fissurata. Operculum spirale, 
centro cellulis radiantibus. 
Sect. A. Rima porosa. 
4. Tenacopvus (SiL1quarius) cumriner, Morch. 
T. anfr. 5 primis scalariformibus, postice angulatis, angulo in anfr. 
ultimis evanescente ; inferne granuloso-lirata, liris distantibus, 
interstitiis hue illue lirula intercalante; transversim leviter 
