194 RECORDS OK llIK AISTltAI-IAN' MUSEI'M. 



Key to AtiHti-alian genera. 



a. Suft ilorsal witli iiliout 12 niys. T«3eth vertical in l>oth jaws, conical, and 

 8iil>-equal. 



b. Teeth uniHerial in l>oth jaws ; scales small F'eriophthalmus. 



bb. Teeth hiserial in the premaxillaries ; scales larjjer Periophthalmodon. 



aa. Soft dorsal with about 25 rays. Mandibular teeth more or less horizontal ; those 

 of the premaxillaries unequal, some subulate. 



c. Body scales small but distinct j mandibular teeth arranjjed in a row which does 



not curve inwards posteriorly Bulfoph t halm its. 



cc. Body scales rmlimentary ; mandibular teeth in a row which curves inward 

 posteriorly Scartelaos. 



PKKKU'IITIIAL.Mrs, lilorh ^- Schnehhr. 



Pcn'ophfhi(hiii(s, Bloch & Schneider, Syst. Ichth., 1801, p. 68 (I\ jhiih'Ii'o, 

 Bloch & Sclmeider). 



Euchoristopiix, (nil, Proc. Acad. Nat. 8ci. Philad., 1868, p. 271 (Gohiiis 



koelmiteri, Pallas). 

 » 



Form moderately elongate, snbcylindrical anteriorly, compressed 

 postei-iorly. Body covered with small, cycloid scales, which extend onto 

 the liead, Mouth i-athei- small, liorizontal, the nppei- jaw overhanging 

 the lowci- ; \\])s with flesh}- lobes and swellings. Kyes erectile, contiguous, 

 on the upper [»rotile of tlie liead ; lower eyelid well developed. Anterior 

 nostrils opening in lobules above the upper lip ; posterior nostrils simple 

 openings befoi-e the eye. Teeth in a single row in each jaw, vertical, 

 conical, and pr)inted. Tongue tliick, adnate to the floor of the month, 

 (nil-openings lateial, separated by a broad isthmus. Two dorsal fins, the 

 fii-st with spines varying in numbei- up to fifteen ; second dorsal short, 

 with al)out twelve rays. Anal opposite and similar to the second dorsal. 

 Pectnral with a scaly muscular base. Ventiuls more or less united or 

 wholly separate, with one spine and five rays. 



Small fishes of the estuaries and mud-flats of the tropical Indian and 

 Pacific Oceans, one species ranging northward to Japan. 



PKinoniTiiAl.Mi's KoKMiKi'TKKi (PaUiis), (Uinther. 



vai'. AluiKNTiLlNEATDS, i'livier cV Valencienueg. 



(Plate xxxi., fig. 1.) 



Pt'iiofilitliitlDiiis 1,-nrlreiilrri (I'allas). (iiintluT, Pi-it. Mus. Cjil. Fisli., iii., 

 1S()1, p. 97. 



reriofthlhiihinoi (tnit'lifili'iii'alus, Cny'wr & S'lilencieimes, Hisf. Naf. Pniss., 

 xii., 1S87, p. 'l*n. 



1). xii-xvi/12-l:!; A. 12; P.!.',; V. i/O ; C. Vi. Dej.th 5-7 in the 

 length to the hypural joint ; head 42 in the same. Eye 4 in the head. 

 First dorsal spine 11, jnedian dr)rsal i-ays 2-1, median an:il lays 27 in the 

 head. 



