656 



BEroRT — 1863. 



337. 



3-39. 

 340. 



Litorina scutulata, Old. ¥,.¥.. -\-lepida, Gld. Xnr.^plcna, Old. Small, solid, 



pointed, flattened, smoothish. Rocks between ticles, Ijord. 

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

 ? Paludinella, sp. May be an aberrant A^sitiiiiiea. 

 Lacuna vincta, Mont. auct. Circunibnreal. 



341. Lacuna porrecta, n. s. 

 j41 6. Lacuna ?var. effusa. 



Upper whirls flattened, effuse anteriorly; chink large. 

 _ I^ar^er, taller, more swollen. 



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



342. Lacuna solidula, Y,ov.:=carinata, Gld., not A. XA.= Vodelia striata, Gabb. 



Solid, variable, chink small ; sometimes keeled or ang-ular. 



342 b. Lacuna ?var. compacta. Very small, narrow, oi-ange, scarcely chinked. 



343. Lacuna varicgata, n. s. Very tall, e'fuse, irregular with wide chink : clouded 



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

 2-14. Lacuna unifasciata, Cpr. P. Z. S. 1850, p. 205. Small, glossy, generally with 



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



resembling the chinked Phasianell<e. 8-10 fm. Cp. 

 345. Isapis fenestrata, n. s. Like oroidea, with shai"p distant ribs. 

 340. Isapis obtusa, n. a. Whirls flattened behind : ribs swollen, uneven. 10-20 



fm. Cp. 



Family Rissoida. 



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



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



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



over 18 sharp distant ribs, obsolete in front. 



350. Alvania reticulata, n. a. Open network : radiating threads travelling oyex 12 



stronger distant spiral threads. 

 361. Alvania JUosa, n. s. Turrited : pillar purple-stained : 18 close spiral struCi 



passing over very faint waved riblets. 

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

 863. Barleeia subtenuis, n. s.^^Hydrobia ?ulv(e, Maz. Cat. no. 417 ; but with normal 



Barleeoid operculum. On grass, Cp. 

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

 354. Barleeia haliotiphila, n. s. Longer, narrower, much smaller. On H. splendent. 

 366. Amphithalamus inclusus, n. g., n. s. Habit of minute Nematura ; labrum not 



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



behind. Isucleus cancellated : base bluntly ribbed. 



142 



