﻿180 
  PROCKEDINGS 
  OF 
  THE 
  MAI-ACOI,OGICAL 
  SOCIKTY. 
  

  

  176. 
  Ceritlmim 
  rupestre, 
  Risso. 
  Very 
  common, 
  especially 
  in 
  the 
  fish- 
  

  

  ponds 
  of 
  Marsascirocco 
  Creek 
  and 
  in 
  the 
  salt-pans 
  of 
  Wied 
  il 
  

   Buni. 
  

  

  177. 
  Cerithmm 
  conicum, 
  Blainv. 
  This 
  species 
  is 
  found 
  in 
  the 
  fish- 
  

  

  ponds 
  of 
  Marsascirocco, 
  where 
  it 
  is 
  very 
  abundant. 
  

  

  178. 
  Cerithium 
  reticulatam, 
  da 
  Costa. 
  During 
  some 
  years 
  this 
  

  

  species 
  is 
  reproduced 
  in 
  countless 
  numbers 
  amongst 
  the 
  weeds 
  

   of 
  " 
  II 
  Ghain 
  ". 
  

  

  179. 
  Cerithium 
  lacteum, 
  Phil. 
  The 
  shells 
  of 
  this 
  mollusc 
  are 
  very 
  

  

  common 
  in 
  sand 
  and 
  shingle, 
  but 
  in 
  the 
  living 
  state 
  the 
  

   species 
  is 
  very 
  hard 
  to 
  get. 
  

  

  180. 
  Triforis 
  perversus, 
  L. 
  Dead 
  and 
  generally 
  very 
  imperfect 
  

  

  specimens 
  are 
  frequently 
  found 
  in 
  sand 
  and 
  shingle. 
  

  

  181. 
  Umiella 
  reticulata, 
  Blainv. 
  Dead 
  specimens, 
  generally 
  inhabited 
  

  

  by 
  a 
  hermit 
  crab, 
  are 
  common 
  along 
  the 
  rocky 
  coast, 
  and 
  taken 
  

   frequently 
  in 
  the 
  dredge, 
  but 
  alive 
  the 
  species 
  is 
  only 
  very 
  

   occasionally 
  met 
  with. 
  

   181a. 
  Purpura 
  hamadomu, 
  L. 
  Frequent; 
  Cala 
  Fraiia 
  to 
  Binghisa 
  

   Point. 
  

  

  182. 
  Typhis 
  tetrapterus, 
  Broun. 
  Very 
  scarce; 
  inhabits 
  weedy 
  and 
  

  

  shingly 
  bottoms 
  at 
  a 
  depth 
  of 
  4 
  to 
  10 
  fathoms 
  or 
  more. 
  

  

  183. 
  Murex 
  brandaris, 
  L. 
  One 
  live 
  specimen 
  dredged 
  on 
  the 
  muddy 
  

  

  bottom 
  of 
  Cala 
  San 
  Giorgio. 
  

  

  184. 
  Murex 
  trtmculus, 
  L. 
  llelatively 
  scarce, 
  but 
  universally 
  spread 
  

  

  over 
  all 
  soits 
  of 
  bottoms 
  and 
  at 
  various 
  depths. 
  

  

  185. 
  Murex 
  edwardsii, 
  Payr. 
  Common 
  all 
  along 
  the 
  rocky 
  shore, 
  

  

  but 
  more 
  frequent 
  on 
  tliat 
  portion 
  between 
  Birzebbugia 
  and 
  

   Cala 
  Frana 
  ; 
  it 
  is 
  usiuiUy 
  found 
  at 
  waterliue. 
  

  

  186. 
  Murex 
  cristatm.^voQQ. 
  Occurs 
  rather 
  sparingly 
  ; 
  inhabits 
  both 
  

  

  weedy 
  and 
  shingly 
  bottoms, 
  and 
  ranges 
  from 
  waterline 
  to 
  

   a 
  depth 
  of 
  several 
  fathoms. 
  

  

  187. 
  Murex 
  aciculatus, 
  L:imk. 
  Very 
  scarce; 
  inhabits 
  weedy 
  and 
  

  

  rocky 
  bottoms 
  at 
  various 
  depths. 
  The 
  specimens 
  taken 
  in 
  the 
  

   dredge 
  are 
  generally 
  very 
  small. 
  

  

  188. 
  Coralliophila 
  latnellosa, 
  Jan. 
  Bare 
  ; 
  only 
  six 
  or 
  seven 
  dead 
  

  

  specimens 
  obtained 
  from 
  various 
  points 
  of 
  the 
  coast. 
  

  

  189. 
  Fusus 
  syracusanns, 
  L. 
  Live 
  specimens 
  are 
  very 
  seldom 
  met 
  with 
  ; 
  

  

  dead 
  ones, 
  however, 
  are 
  more 
  or 
  less 
  frequent. 
  The 
  species 
  

   inhabits 
  weedy 
  and 
  rocky 
  bottoms 
  at 
  various 
  depths. 
  

  

  190. 
  Fasciolaria 
  lignaria, 
  L. 
  Found 
  almost 
  all 
  along 
  the 
  rocky 
  

  

  beach, 
  but 
  is 
  more 
  frequent 
  on 
  the 
  part 
  between 
  Cala 
  Frana 
  

   and 
  Binghisa 
  Point, 
  ranging 
  from 
  waterline 
  or 
  above 
  to 
  

   a 
  depth 
  of 
  about 
  1 
  fathom. 
  

  

  191. 
  Lachesis 
  minima, 
  Phil. 
  Living 
  specimens 
  are 
  more 
  or 
  less 
  

  

  frequent 
  on 
  weeds 
  near 
  waterline, 
  dead 
  ones 
  are 
  common 
  

   enough 
  amongst 
  sand 
  and 
  shingle. 
  

  

  192. 
  Lachesis 
  candidissima, 
  Phil. 
  One 
  dead 
  but 
  very 
  beautiful 
  

  

  specimen 
  picked 
  up 
  on 
  the 
  sandy 
  beach 
  of 
  Birzebbugia. 
  

  

  193. 
  Pisania 
  maculosa, 
  Lamk. 
  Common 
  about 
  waterline 
  almost 
  all 
  

  

  along 
  the 
  rockv 
  beach. 
  

  

  