THE NAUTILUS. 43 



oblongus, rotundatus, post medium loevigatus (striis spiralibus 

 evanidis). Apertura subobliqua, oblongo-angustata, albida. Col- 

 umella reflexa, incrassata, fere recta. Peristoma rectum, acutum, 

 margine extero antrorsum hand arcuato. 



Long. 44, lat. 21, alt. apert. 18 mill. 



Hub. Mountains above Aden, Arabia (Jousseaume). 



This is a Limicolaria of tlie typical African group and bears no 

 relation lo the species hitherto known from the opposite coast of the 

 Somalis, like L. Revoili, Bourg., Armundi, Bourg., etc. It is re- 

 markable in being very obtuse and of an oblong shape. The mark- 

 ings are but faint, at least as far as the original specimen is con- 

 cerned. 

 2. Buliminus (Petrceus) Pilsbryanus Anc. 



Bulimus Jonsseaumei, Bourg., in coll.; not Buliminus Jouss- 

 eaumei, E. A. Smith, Proc. Malac. 8oc., Vol. I., part 4, p. 142 

 (1894). 



Testa oblonga, clause rimata (rima obliqua, basi arcuata), Candida, 

 statu omnino recenti verisimiliter pallide iuteotincta, solidiuscula, 

 nitida. Spira conideo-oblonga, apice minuto, obtusiusculo, Isevigato. 

 Anfractus 7^ convexiusculi, regulariter crescentes, sutura pa rum 

 profunda discreti, superiores confertim oblique costulati, sculpt ura in 

 sequentibus debiliore, in inferioribus obsolescent! et proeterea lineis 

 spiralibus numerosis indistinctis sub valida lend passim impressa; 

 ultimus postice tonvexus, ad dextram excentricus, versus aperturam 

 breviter ascendens, circa rim am impressus et obtuse subangulatus. 

 Apertura fere recta, superne oblique limata, irregulariter subovata, 

 ad dextram excentrica, ad marginem columellarum leviter oblique 

 rectiuscula, extus valde convexa. Peristoma crassum, callosum, 

 continuum, valide labiatum, planiusculum, latum, undique reflexum. 

 Columella oblique recta, subsinuosa, intus plica valida in dentum 

 acutum desinenti munita. Margines approximate, callo crasso 

 juncti. 



Long. 21, lat 10^, long, apert. (perist. incluso) 10 ; long, ejusd. 

 (peristom. excluso G^); diam. ejusd. (peristom. incluso) 8 ; diam. 

 ejusd. (sine peristomate) 4^ mill. 



Mountains of Yemen, above Aden, Southern Arabia (Dr. Jous- 

 seaume). 



