656 



REPORT — 1863. 



337. Liforitia sctitHlata, G\d. KE. +I('2>ida, Gld. Yar.—ploin, Gld. Small, solid, 



pointed, flattened, smoothish. Rocks between tidt^s, Lord. 



338. ? Asshninea subrotundata, n. s. Like a very thin Litorina : ashen, plain. 



339. ? Paludinella, sp. May be an aberrant Assiminea. 



340. Lacuna rincta, Mont. auct. Circumboreal. 



341. Lacuna jyorrecta, n. s. Upper whirls flattened, efl'use anteriorly ; chink large. 

 341 b. Lacuna ?var. ejfusa. Larger, taller, more swollen. 



341 c. Lacuna ?var. excequata, same shape but flattened. 



342. Lacuna soJidula, l^ov. ■=-carinata, Gld., not A. X(\..= ModeUa striata, Gabb. 



Solid, variable, chink small ; sometimes keeled or angular. 



342 h. Lacuna ?var. compacta. Very small, narrow, orange, scarcely chinked. 



343. Lacuna variet/ata, n. s. Very tall, efliise, irregular with wide chink: clouded 



or with zigzag stripes : like decorata, A. Ad. 

 S-44. Lacuna unifasciata, Cpr. P. Z. S. 1856, p. 205. Small, glossy, generally with 



a coloured keel, sometimes broken into dots. Var. aurantiaca, keel obsoleta, 



resembling the chinked PhasianeUce. 8-10 fm. Op. 

 345. Lsapis fenestrata, n. s. Like oroidea, with sharp distant ribs. 

 340. Lsapis obtusa, n. s. Whirls flattened behind : ribs swollen, uneven. 1 0-20 



fm. Cp. 



Family Itissoidfs. 



347. Rissoina interfossa, n. 8. With 5 sharp keels crossing 14 strong ribs. 8-10 fin. 



348. Rissoa compacta, n. s. Sculptured like Beanii, with short broad whirls. 



349. Rissoa acutelirata, n. s. Alvanoid : 15 sharp, distant, spiral riblets, travelling 



over 18 sharp distant ribs, obsolete in front. 



350. Alvania reticulata, n. s. Open network : radiating threads travelling over 12 



stronger distant spiral threads. 



351. Alvania Jilosa, n. s. Tunited : pillar purple-stained : 18 close spiral striae, 



passing over very faint waved riblets. 



352. Fenella pupoidea, n. s. Variegated, truncatelloid shape. 20 fm. rare, Cp. 



353. Barleeia stibtetiuis, n. a.=Hydrobia ?ulvce, Maz. Cat. no. 417 ; but with normal 



Barleeoid operculum. On grass, Cp. 

 353 6. Barleeia ?var. rimata. Whirls more swollen : base chinked. 



354. Barleeia ludiotiphila, n. s. Longer, nan'ower, much smaller. On H. splendens. 



355. Amphithalamus inclusus, n. g., n. s. Habit of minute Nejnatura ; labrum not 



contracted, but labium in adult travels forward to meet it, leaving a chamber 

 behind. Is ucleus cancellated: base bluntly ribbed. 



142 



