24 ZOOLOGY OF THE VOYAGE OF THE SULPHUR. 



90. Clavatula glumacea, Hinds, 1. c. p. 44, (Plate VII. fig. 15.) Testa, elongata, pallida, 

 nitida ; anfractibus senis costulatis, transversim striatis ; costulis brevibus, rotundatis, suturara 

 siinplicern incurrentibus ; apertura oblonga, fusca ; labro intus lsevi ; canali breviusculo. 



Inhab. North coast of New Guinea. From twenty-two fathoms, mud. 



91. Clavatula retusa, Hinds, 1. c. p. 44, (Plate VII. fig. 16.) Testa parva, obesa, auran- 

 tiaca ; anfractibus septenis, costulatis, transversim striatis ; costulis rotundatis, confertis ; spira 

 conica ; sutura simplici ; apice purpurea ; apertura oblonga ; columella contorta ; canali breviusculo. 



Inhab. Straits of Macassar. From ten fathoms, coarse sand. 



92. Clavatula rigida, Hinds, 1. c. p. 45, (Plate VII. fig. 18.) Testa ovata, retusa ; anfrac- 

 tibus quinis, costulatis, superne angulatis, transversim striatis ; sutura simplici ; apertura oblonga ; 

 labro crenulato ; columella rugosa ; canali brevi. 



Inhab. Panama. 



Many of these species, particularly of the latter, are very small, but after an 

 attentive and deliberate examination, they are all found to possess very clear and 

 legible characters ; and if the research necessary to their elucidation and discri- 

 mination has been at times laborious, it has also afforded much gratification in 

 beholding with how much elegance and beauty even these minute objects have 

 been formed, equally with the more prominent members of the creation. When we 

 reflect what multitudes of similar beings inhabit the recesses of the globe, beyond 

 the reach of human observation, and which at rare intervals are brought to light, 

 like the present humble specimens, it requires the boldest stretch of the imagination 

 even to bring within the comprehension an idea of the countless multitudes of 

 organised beings of our earth, and all rich in some manner peculiarly their own, 

 either in colour, sculpture, decoration, or symmetry. 



Conopleura. Hinds. 



Testa coniformis, vel involuta ; spira conico-elata ; sinus lateralis posticus, profundus, margine 

 callosa ; labrum intus lseve ; columella subproducta ; apertura linearis ; canalis subnullus. 

 93. Conopleura striata; (Plate VII. fig. 22, 23.) Species unica. 



Inhab. New Guinea. In seven fathoms, among mud. 



Two specimens only were obtained, and both bear marks of having laid some 

 time in the mud without an animal occupant; they have probably from this 

 undergone some change in their appearance. Both are destitute of colour or 

 epidermis, coniform, with a somewhat elate, acuminate spire, and which is honey- 

 combed in a remarkable manner, having regular excavations and partitions ; the 

 outer lip has the sinus of the family, and between it and the last whorl a callous 



