K. Fraussen & J. Rosado 
The Cantharus group on Almirante Leite bank 
rounded, lip thick, edge sharp, wilh broad but low 
internai knobs, not situated according to primary spiral 
cords on outer side; adapical knob slightly bigger, 
occasionaily split; abapical knob slightly bigger, on 
transition to siphonal canal. This abapical knob is not 
situated in front of the abapical columellar knob, but 
strongly diagonally orientated abapically of it. Labral 
varix low but broad, slightly prosocline. Siphonal 
canal short, broad. open. 
Animal and operculum unknown. 
Comparison. Micrologus mochatinctus sp. nov. is 
characterized by the fine spiral sculpture consisting of 
equally spaced primary spiral ribs of equal strength 
with the interspaces omamented with 3 (occasionaily 
4) fine secondary spiral threads of equal strength, in 
combination with a smooth columella. 
Ail possibly similar species of other groups differ 
by the presence of stronger spiral cords on the base 
and by the presence of knobs and lirae on the 
columella. 
Etymology. Micrologus mochatinctus sp. nov. is 
derived from “mocha”, originally Mocha in Yemen 
where coffee has been exported since ancient times, 
now used for a mixture of coffee and chocolaté, and 
for expressing the brown colour; in combination with 
“tinctus” (Latin), meaning “a dye”. 
ACKNO WLEDG M ENTS 
We are grateful to Philippe Bouchet, Philippe 
Maestrati and Virginie Héros (MNHN, France) for 
making the material avai labié for study. Guido T. 
Poppe (Belgium, Philippines) for support and sharing 
his knowledge. Philippe Poppe (Philippines) for 
procuring material for comparison. Alain Fraussen 
(Belgium) for etymological help. David Monsecour 
(Belgium) for correcting the English text. 
REFERENCES 
Bouchet, P. & Warén, A. 1986. Mollusca Gastropoda: 
Taxonomical notes on tropical deep water 
Buccinidae with descriptions of new taxa. In: 
Résultats des Campagnes MUSORSTOM. I & II. 
Philippines (1976-1980). Tome 2. Mémoires de 
Muséum national d'Histoire naturelle, série A, 
Zoology, 133:455-499, text figs. 1-4, pis. 1-18. 
Gardner, J., 1944. The molluscan fauna of the Alum 
Bluff Group of Florida. VII. Stenoglossa (in part). 
United States Geological Survey. Professional 
Papers, 142-G: 437-491. 
Linnaeus, C., 1758. Systema naturae per régna tria 
naturae. Editio décima, reformata. Vol. 1, Regnum 
animale. Stockholm, 824 pp. 
Sowerby, G. B., 1834. The Généra of Recent and 
Fossil Shells, vol. II. London, pis. 127-262. 
Vermeij, G. J. & Bouchet, Ph., 1998. New Pisaniinae 
(Mollusca, Gastropoda, Buccinidae) from New 
Caledonia, with remarks on Cantharus and related 
généra. Zoosystema, 20(3): 471-485. 
Vermeij, G. J., 2006. The Cantharus Group of 
Pisaniine Buccinid Gaspropods: Review of the 
Oligocène tp Recent Généra and Description of 
Some New Species of Gemophos and 
Hesperisternia. Cainozoic Research, 4(1-2): 71- 
96. 
Figures 1-13 
1-6. Micrologus mochatinctus gen. & sp. nov., holotype MNHN-23772, 15.0 mm, Mozambique Channel 
Almirante Leite Bank, MAINBAZA stn. DW3169, 26°1LS, 35°0LE, 450 m deep. 
7-11. Pollia imprimelata sp. nov. 
7-8. Holotype MNHN-23770, 19.9 mm, Mozambique Channel, Almirante Leite Bank, MAINBAZA stn. 
DW3 |6 7, 26°12’S, 35°02’E, 228-230 m deep; 9-10. Paratype 1, MNHN-23771, 21.3 mm, same locality; 
1. Piotoconch of paratype 8, MNHN-23771, diameter 1.1 mm, same locality. 
12. Pollia sp., 17.6 mm, Mozambique Channel, Almirante Leite Bank, MAINBAZA stn. DW3168 
-6° 12 S, 35°03’E, 87-90 m deep, MNHN. 
P' VWVl 61 ^’ ana (Melvill & Standen, 1903), northwestern Madagascar, between Majunga and Cape 
St. André, MIRIKY stn CP3260, 15°35’S, 45°45’E, 179-193 m deep, MNHN. 
78 
