MARINE MOLLUSCA. 605 
is white, blotched with dark chestnut. The lower part of the body-whorl is minutely white-dotted. 
Intermediate forms connecting this with the type occur in the British Museum collection. Length, 
17 mm., diam. 7 mm. 
77. Mitra (Costellaria) exasperata, Gmelin, 40, }, JV. (var. =. arenosa, Lamarck, 40, b, [V.) 
AVéliemVeleeIEXe, OX] XEN: SXDV, SV. 
The two specimens from station XIV. are variations of the form arenosa, differing from normal 
examples in being almost entirely white, with only one or two faint zones below the middle of 
the body-whorl. 
78. Mitra (Costellaria) sculptilis, Reeve, 37,//. II, V, X. 
79. Mitra (Costellaria) acupicta, Reeve, 40,0,/V. V. 
80. Mitra (Costellaria) armigera, Reeve, var. 37,//. IX. 
A single specimen only of this species was obtained. It differs from the type in being whiter, 
with a thread-like brown line round the middle of the upper whorls and three on the last. The 
locality of the type is unknown. J. turrigera, Reeve, is closely allied, but more sculptured 
between the costae. 
81. Mitra (Costellaria) deshayesii, Reeve, 40,4,/V. X. 
82. Mitra (Costellaria) angustissima, n. sp. (Pl. XXXYV. fig. 5). V. 
Testa gracillima, elongato-fusiformis, pallide fuscescens, ad partem anfractuum superiorem albida, 
fusco maculata, et circa medium anfr. ultimi maculis subquadratis notata; anfractus circiter 10, 
superiores subgradati, fere plani, caeteri leviter convexiusculi, costis numerosis (circiter 28) gracilibus 
instructi, et sulcis spiralibus inter costas punctatis (in anfr. penult. 7, in ultimo 12—13) sculpti, 
ultimus antice cirea caudam sulcis obliquis fortioribus haud punctatis ornatus; apertura parva, angusta ; 
longit. totius 1 paulo superans; columella plicis.quinque obliquis instructa, callo tenui induta; Jabrum 
tenue. Longit. 12}mm., diam, 4. Apertura 5 longa, 14 lata. 
Remarkable for its very slender form and the punctate striae between the costellae. The folds 
on the columella correspond to the oblique ridges between the sulci on the cauda of the body- 
whorl. These ridges are spotted with pale brown. 
83. Cylindra sinensis, Reeve, 40,),/V. VI. 
Family FASCIOLARIIDAE. 
84. Latirus craticulatus, Linn. (Zwrbinella craticulata, Reeve, 37,IV.) IX. 
85. Latirus fastigium, Reeve (Zurbinclla fastigium, Reeve, 37,/V.) XII. 
86. Peristernia nassatula, Lamarck (Z7wrbinella nassatula, Reeve, 37,/V.) IX. 
87. Leucozonia smaragdula, Linn. (Zurbinella smaragdula, Reeve, 37,7V.) IX, XI, XIII. 
Family TURBINELLIDAE. 
88. Cynodonta cornigera, Lamarck (Vurbinella cornigera, Reeve, 37, ZV.) Maldives. 
G. IL. 78 
