230 FISHES, LIVING AND FOSSIL 



Psammodus, ^ajUfios, sand, oSous, tooth (ed). 

 Psephurus, i//^os, a little stone, oupa, tail. 



Pseudopleuronectes, i/'euSos, false, TrAeupoV, side, VT/KT^S, swimmer. 

 Pterichthys, 7rre'pu, fin or wing, LX@V<;, fish. 



Raja, classic name of skate. 



Rhabdolepis, pa/3Sos, nail, ACTTIS, scale(d). 



Rhina, pivrj, a rasp. 



Rhinobatus, pu/a, Rhina, part's, skate. 



Rhynchodus, puyx s > snout, oSou's, tooth (ed). 



Scaphirhynchus, <TKa<<W, shovel, piryxos, snout. 

 Scomberomorus, o-/<o/x,/:Jpos, mackerel, /u,opiov, part. 

 Scyllium, o-KwAiov, classic name of this shark. 

 Selachii, aeXdxr], shark. 



Semionotus, o-^/xeiov, a standard, voiros, back. 

 Silurus, classic name of fish. 

 Siphostoma, cri^nav, tube, o-ro/ia, mouth. 

 Sirenoidei, siren, salamander, oISos, like. 

 Squaloraja, squalus, shark, raja, skate. 

 Squalus, classic name of a shark. 

 Squatina, a classic name of a sea-fish. 



Teleocephali, re'Aeos, entirely, ocrreoi/, bone, Ke^aA?;, head. 



Teleost, re'Aeos, entirely, oo-re'ov, bone. 



Teleostomi, re'Aeos, entirely, oo-reoi/, bone, OTO/WI, mouth. 



Titanichthys, ///, giant, lyOix;, fish. 



Torpedo, classic name (from the root of Torpor, stupefy) . 



Trachosteus, rpa^w's, rough, ooreov, bone. 



Trygon, rpvywv, the thorny ray. 



Urogymnus, ovpa, tail, yuyuvos, naked. 

 Xenacanthus, ^eVos, strange, axavOa., spine. 



