•:is 



rUOCKKlUNOS OK lllK M VIACOI.OOIC V I. !>oou:rv. 



TruuoNU.i.A ^NisiiiKuis^ vvii.vrv. ii.sp. V\. XI. Viii'. 7. 



T. tosta p:uYa. attomuito-fusitormi. alba. lU'lioata, luuul uitoiito. 

 aufraotilnis lo. (juonnu apioalos tvoj; omuino vovoluti. liotovostrophi. 

 albo-vitroi. Isvvissimi. caHoris dooom ad sutnras iiupivssis ot vallatis. 

 undique ov^statis. ooistis rootis. inorassatis. imiuoro aufraotum apud 

 nltinuim 17-18, iutorstitiis hwibus. ultimo ad basim fere rooto. oostis 

 infra iiiodium ovanidis. aportma squanoso ovata, labro paullmu 

 inoi-iissiato. vooto, oolumolla subplioata. Long. 4 oO. lat. llo nun. 



Huh. — roman Gulf. Kowoit, 10 fatboius. 



Kossombliiii; T. ndicoiifotii, Molv., from the same rogion in its 

 s^traigbt loniiitndinal ribs, but ditYoriii!}; in tbe iiradato and tiattoned 

 upper portion of each Avliovl. 



i^Vallatus. fuvni$hod with ramparts.^ 



Latiaxis muNOKrs, n.sp. PI. XII. Fiir. \c>. 



L. tosta oblongo-fusiformi. anjiusto perforata, alba vol straminoa. 

 interdum pallide Inaointbino-tinota. anfraotibiis 7-8, quorum apirales 

 :i miuuti. vitrei, tribus bis proximis spiraliter orassi-nodulosis. ad 

 niediuiu angulatis. duobus ultimis ad medium late et regulariter 

 triansiulatim spinosis. spinis recurvis. frondosis. squamatis. ultimo 

 antraetus omni superfioio tenuistriata, et. infra periplieriam usque ad 

 basiii\ spiraliter septem sqnamarum ordinibus imbricatis ornata. 

 apertura ovata. alba, labro tenui. extus uuiltidentato, columella fere 

 recta, eanali paullum recurve. Long. o7. hit. 25 nun. 



7/;,^. — rei-siau Gulf, oft" the Telegraph cable at 50 fathoms, and 

 near Mussaudam. 55 fathoms. 



Originally considered to be Z. (fhuifiiui^ Sowb., this very elegant 

 species diftVi's in form of aperture and general contour considei-ably. 

 being, indeed, nearer to the more recently described Z. armatus, 

 Sowb.. which has much truer sculptuiv upon the body-whorl, the ciivlet 

 of spines likewise being hu'ger proportionately. I am indebted to 

 Mr. Edg;\r Smith for pointing out these difteivnces upon comparison 

 with the actual types, and for his opinion thereupon. These three 

 species diaJ<rma. annatua, and pn'tw^ps may by some be considered 

 forms of one protean species, but they seem constant to their types, 

 and this fact points to the probability of their all being worthy of 

 specific recognition. 



