656 



REPORT — 1863. 



337. Litorina scutulata, Gld. 'E.'E.+lepida, Gld. 'VeLr.=plma, Gld. Small, solid, 



pointed, flattened, smoothish. Rocks between tides. Lord. 



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



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



340. Lacuna vincta, Mont. auct. Circumboreal. 



341. Lacuna porrecta, n. s. Upper whiiis flattened, effuse anteriorly ; chink large. 

 341 6. Lacuna ?var. effusa. Larger, taller, more swollen. 



341 e. Lacuna Pvar. exeeqtiata, same shape but flattened. 



S42. Lacuna solidula, Tiov.^carinata, Gld., not A. Ai.= YodeKa striata, Gabh. 

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



342 5. Lacuna Pvar. compacta. Very small, narrow, orange, scai'cely chinked. 

 343. Lacuna variegata, n. s. Very tall, effuse, irregular with wide chink : clouded 



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

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

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

 resembling the chinked Phasianellce. 8-10 fin. Cp. 



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



346. Isapis obiusa, n. s. Whirls flattened behind : ribs swollen, uneven. 10-20 



tm. Cp. 



Family Rissoidte, 



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



348. Itissoa compacta, n. s. Sculptui-ed like Beanii, with short broad whirls. 



S49. Eissoa acutelirata, n. a. Alvanoid : 15 shai-p, distant, spiral riblets, travelling 

 over 18 sharp distant ribs, obsolete in fi'ont. 



350. Alvania reticulata, n. s. Open network : radiating threads travelling over 13 



stronger distant spiral threads. 



351. Alvania Jilosa, n. s. Turrited : pillar purple-stained : 18 close spiral strisc, 



passing over very faint waved riblets. 



352. Fenella pupoidea, n. s. Variegated, truncateUoid shape. 20 fin. rare, Cp, 

 853. Barleeia subtenuis, n. B.=IIydrobia ?ulv<s, Maz. Cat. no. 417 ; but with normal 



Barleeoid operculum. On grass, Q>. 

 353 b. Barleeia Pvar. rimata. Whuls more swollen : base chinked. 



354, Barleeia haliotiphila, n. s. Longer, naiTower, much smaller. On IT. splendent. 



355, AmphithaJamui inclusus, n. g., n. s. Habit of minute Nematiira ; labrum iT-'t 



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

 behind. Kucleus cancellated ; base bluntly ribbed, 



142 



