36o 



4. Latiaxis tabttlatus n. sp. PI. XXI, fig. 9. 



Stat. 95. 5°43'.5 N., ii9°4o'E. Sulu-archipelago. 522 M. Stony bottom, i Spec. 



Shell pear-shaped, probably white, but greyish in its state of preservation. Whorls about 6, 

 upper one forming a smooth incomplete nucleus, postnuclear whorls angular, horizontally convex 

 above, nearly straight below the angle, at the angle with a conspicuous, erected wall, nearly 

 perpendicular in the upper whorls, sHghtly bent outwards in last whorl ; suture deep, canaliculate, 

 last whorl contracted below ; the whole shell is covered with rather fine, subequal spiral lirae, about 

 38 on last whorl, inclusive of canal and erected wall, and concentric lamellose striae, rendering the 

 lirae squamous. Aperture rounded-triangular, upper margin slightly convex, outer one more so, 

 with a groove corresponding to the erect wall at the union of both margins, columellar margin 

 enamelled, appressed, becoming a free lamella at the rather narrow, tortuous canal, on the left 

 side of this lamella an umbilical perforation, bordered by a rounded, squamous, curved, basal 

 varix. Interior of aperture smooth. 



Alt. 30Y3, lat. 15; apert. alt. with canal 19, lat. 7 Mill. 



This very peculiar species has only a remote resemblance with L. pagoda^ but is quite 

 different by the erect margin or keel and by every particular ; in shape it resembles much 

 Chrysodoimis tabtilahis Baird, as figured by Dall (Proc. U. S. Nat. Mus. Vol. XXIV, 1902, 

 PI. 36, fig. 5) or the long known Semiftisti-s cochlidmm. In accordance with the first named 

 non-related species, I have given the specific name. 



Fam. CORALLIOPHILIDAE. 

 Bulbus Humphreys. 



I . BtdbiLS rap a Linne. 



LiNNE. Syst. Nat. Ed. X, p. 752, N° 476. 



RUMPH. Amb. Rariteitkamer, p. 91, PI. 27, Fig. F. 



KlENER. Coq. Viv. Vol. V, Pyrula, p. 31, PI. 14, fig. i- — 3 [papyracea). 



Reeve. Conch. Ic. Vol. IV, Pyrula, fig. 21. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. Ill, Pyrula, PI. 24, fig. 4, 5. 



Tryon. Man. of Conch. Vol. II, p. 214, PI. (:>j, fig. 392, 393 [papyracea). 



Stat. 33. Bay of Pidjot, Lombok. 22 M. and less. Mud, coral and coralsand. 3 Spec. 

 Stat. 37. Sailus ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. x Spec. 



Coralliophila H. & A. Adams. 



This genus is rather disagreeable to deal with, on account of the variability of most 

 species in accordance with their mode of living, only a few of the species could be identified 

 as belonging^ to known forms. 



114 



