﻿HEVISIOX 
  OF 
  THE 
  GENEKA 
  OF 
  MULLETS 
  — 
  SCHULTZ 
  

  

  393 
  

  

  This 
  e:omis 
  is 
  chnniclorizotl 
  l)y 
  haviii!> 
  ciliform 
  teoth 
  omhoddcd 
  in 
  

   the 
  lips 
  of 
  both 
  jaws, 
  tlicir 
  tips 
  not 
  or 
  scarcely 
  visible; 
  the 
  lower 
  lip 
  

   is 
  thin 
  as 
  iii 
  Chelon 
  and 
  directed 
  forward 
  horizontally; 
  tip 
  of 
  lower 
  jaw 
  

   v^Tth 
  s^'Hipliyseal 
  knob; 
  scales 
  ctenoid; 
  front 
  edjje 
  of 
  preorbital 
  nearly 
  

   strai<2:ht, 
  without 
  conspicuous 
  concave 
  notcli, 
  and 
  its 
  posterior 
  edge 
  

   with 
  or 
  without 
  greatly 
  enlarged 
  spines; 
  maxillarj'^ 
  and 
  premaxillary 
  

   not 
  bent 
  downward 
  but 
  extending 
  in 
  nearly 
  same 
  line 
  as 
  front 
  edge 
  of 
  

   preorbital 
  except 
  when 
  ihe 
  spines 
  project 
  as 
  in 
  hamiltoni 
  Day; 
  nostrils 
  

   in 
  line 
  with 
  upper 
  edge 
  of 
  orbit, 
  somewhat 
  separated, 
  closer 
  together 
  

   than 
  anterior 
  is 
  from 
  edpe 
  of 
  groove 
  behind 
  ui)per 
  lip 
  or 
  as 
  far 
  apart 
  as 
  

   anterior 
  is 
  from 
  edge 
  of 
  groove 
  behind 
  upper 
  lip; 
  adipose 
  eyelid 
  

   wholly 
  absent; 
  a 
  narrow 
  band 
  of 
  teeth 
  on 
  vomer 
  and 
  palatines 
  and 
  

  

  Figure 
  3L 
  — 
  Sketches 
  of 
  the 
  maxillary, 
  premaxillary, 
  and 
  preorbital 
  bones 
  of 
  Trachystoma 
  

   petardi 
  (U. 
  S. 
  N. 
  M. 
  No. 
  59866 
  from 
  New 
  South 
  Wales): 
  a. 
  Maxillary 
  lyin^' 
  over 
  pre- 
  

   maxillary; 
  b, 
  view 
  of 
  ventral 
  contour 
  of 
  maxillary; 
  c, 
  preorbital. 
  

  

  pioljably 
  on 
  tongue; 
  nuirgin 
  of 
  lower 
  jnw 
  rounded 
  to 
  soni<>what 
  

   angular; 
  gill 
  membranes 
  extending 
  fur 
  ftMuaid. 
  not 
  broadl3' 
  connected 
  

   across 
  isthmus; 
  anal 
  origin 
  notably 
  in 
  front 
  of 
  second 
  dorsal 
  origin. 
  

   The 
  generic 
  dingnosis 
  was 
  based 
  on 
  three 
  specimens 
  of 
  Trnchystnma 
  

   petardi 
  (U. 
  S. 
  \. 
  M. 
  .\o. 
  5986G) 
  from 
  Clarenee 
  River, 
  New 
  South 
  

   Wales. 
  Also 
  I 
  refer 
  to 
  this 
  genus 
  a 
  specimen 
  from 
  Durban, 
  South 
  

   Africa, 
  sent 
  to 
  the 
  Xationnl 
  Museum 
  many 
  years 
  ago 
  under 
  th<> 
  name 
  

   " 
  MufjU 
  euronotvfi^' 
  by 
  the 
  Alb:ui\ 
  Museum. 
  This 
  specimen 
  ngrees 
  

   with 
  Dr. 
  J. 
  L. 
  B. 
  Smith's 
  description 
  (Ann. 
  South 
  African 
  Mus., 
  vol. 
  

   30, 
  pp. 
  010, 
  013, 
  fig. 
  7, 
  pi. 
  10, 
  E, 
  H).'}.'.). 
  which 
  slates 
  that 
  it 
  occurs 
  

   almost 
  wholly 
  in 
  fresh 
  water 
  and 
  only 
  mrely 
  in 
  the 
  sea. 
  1 
  have 
  

   studied 
  a 
  small 
  specimen 
  of 
  Afugil 
  hnmiUoni 
  Day 
  (U. 
  S. 
  N. 
  M. 
  No. 
  

  

  