﻿Galtij 
  Marine 
  Lahorafonj, 
  S'. 
  Andrew.<t. 
  109 
  

  

  and 
  with 
  distinct 
  but 
  narrow 
  wing^s, 
  whereas 
  the 
  shorter 
  

   bristles 
  have 
  boldly 
  curved 
  tips, 
  which, 
  in 
  some, 
  are 
  much 
  

   worn. 
  The 
  wings 
  of 
  these 
  commence 
  a 
  little 
  beyond 
  the 
  

   cuticle. 
  The 
  number 
  of 
  the 
  setigerous 
  processes 
  is 
  the 
  

   same 
  as 
  in 
  the 
  other 
  forms, 
  viz., 
  eighteen, 
  the 
  first 
  tliree 
  

   being 
  immersed 
  in 
  the 
  tissues, 
  only 
  the 
  tips 
  appearing 
  

   beyond 
  the 
  surface. 
  

  

  Tlie 
  anterior 
  hooks, 
  which 
  are 
  in 
  a 
  single 
  row, 
  follow 
  

   a 
  similar 
  arrangement 
  to 
  those 
  of 
  the 
  other 
  species, 
  but 
  

   have 
  five 
  teeth 
  anteriorly 
  besides 
  a 
  process 
  above 
  the 
  prow, 
  

   and 
  thus 
  a 
  greater 
  number, 
  as 
  a 
  rule, 
  than 
  in 
  tlie 
  two 
  previous 
  

   forms. 
  The 
  posterior 
  outline 
  is 
  inflected, 
  whilst 
  the 
  inferior 
  

   border 
  of 
  the 
  base, 
  after 
  a 
  slight 
  inflection 
  posteriorly, 
  

   becomes 
  convex 
  as 
  it 
  ap])roaclies 
  the 
  anterior 
  prow. 
  The 
  

   posterior 
  hooks 
  do 
  not 
  differ 
  materially 
  from 
  the 
  foregoing, 
  

   except 
  in 
  size. 
  The 
  hooks 
  differ 
  from 
  those 
  of 
  Melinna 
  

   macukita, 
  Webstei', 
  in 
  having 
  a 
  process 
  between 
  the 
  prow 
  

   and 
  the 
  first 
  tooth. 
  

  

  The 
  tube 
  is 
  composed 
  of 
  secretion 
  covered 
  with 
  a 
  layer 
  of 
  

   m\id. 
  It 
  is 
  friable. 
  

  

  The 
  ninth 
  form 
  is 
  Melinella 
  macdu^, 
  sp. 
  n., 
  a 
  form 
  

   approaching 
  Pista. 
  The 
  slender 
  body 
  is 
  slightly 
  enlarged 
  

   anteriorly, 
  and 
  gradually 
  tapers 
  posteriorly 
  to 
  a 
  delicate 
  

   tail, 
  which 
  terminates 
  in 
  an 
  anus 
  surrounded 
  by 
  about 
  ten 
  

   long 
  papillae. 
  The 
  posterior 
  region 
  in 
  the 
  preparations 
  is 
  

   nioniliform. 
  The 
  dorsal 
  surface 
  is 
  smoothly 
  rounded, 
  the 
  

   ventral 
  flattened 
  antericndy 
  and 
  grooved 
  posteriorly. 
  The 
  

   glandular 
  scutes 
  are 
  confined 
  to 
  the 
  mid-ventral 
  region, 
  and 
  

   appear 
  to 
  be 
  about 
  ten 
  in 
  number. 
  Segments 
  fifty 
  to 
  sixty. 
  

   \Vhilst 
  the 
  tentacles 
  readily 
  separate 
  on 
  removing 
  the 
  animal 
  

   from 
  its 
  tvibe, 
  the 
  branchiae 
  generally 
  remain. 
  They 
  form 
  

   two 
  slightly 
  branched 
  organs, 
  supported 
  on 
  stalks 
  attached 
  

   to 
  the 
  first 
  segment. 
  The 
  tip 
  is 
  dichotomonsly 
  divided 
  in 
  

   som.e 
  parts, 
  whilst 
  in 
  others 
  it 
  is 
  irregular. 
  Not 
  more 
  than 
  

   a 
  dozen 
  filaments 
  of 
  all 
  kinds 
  occur 
  in 
  each 
  branchia. 
  

  

  The 
  setigerous 
  processes, 
  which 
  commence 
  on 
  the 
  third 
  

   segment, 
  are 
  minute 
  and 
  appear 
  to 
  be 
  about 
  eighteen 
  in 
  

   number. 
  Each 
  bears 
  a 
  small 
  tuft 
  of 
  translucent 
  bristles, 
  

   with 
  delicately 
  tapered 
  slightly 
  curved 
  tips 
  with 
  narrow 
  

   wings, 
  and 
  arranged 
  in 
  tw^o 
  series, 
  a 
  longer 
  and 
  a 
  shorter, 
  

   the 
  shorter, 
  however, 
  being 
  only 
  a 
  little 
  within 
  the 
  tips 
  of 
  

   the 
  longer. 
  

  

  The 
  rows 
  of 
  hooks 
  commetiee 
  with 
  the 
  bristles, 
  and 
  in 
  

   single 
  series. 
  Each 
  hook 
  much 
  resembles 
  that 
  of 
  Melinna 
  

   oistata, 
  having 
  two 
  distinct 
  teeth 
  above 
  the 
  great 
  fang, 
  

   a 
  somewhat 
  narrow 
  space 
  below 
  it, 
  as 
  the 
  process 
  on 
  the 
  

  

  