230 
PACIFIC SCIENCE, Vol. VII, April, 1953 
as illustrated by the gillrakers, there is not a 
progressive reduction in complexity of lateral- 
line structure from Aiagnistidis. On the con- 
trary, there is a general increase in complexity 
of form in the scaled genera from Magnisudis 
through Paralepis to the extreme condition 
found in Notolepis. Then there is a progressive 
reduction in complexity of lateral-line form 
in the naked genera from the most complex 
in Lestidium through Macroparalepis and Ste- 
vionostidts. 
Jensen (1942) has presented the most im- 
portant discussion on the structure of the 
lateral-line tube and its overlying scales. How- 
ever, in some species he has confused the 
imbedded segments of the tube with overly- 
ing lateral-line scales. Therefore, for Paralepis 
coregonoides and Paralepis brevis, he figures seg- 
ments of the lateral-line tube as lateral-line 
scales. As the scales are so caducous in this 
genus, the overlying scales were probably 
missing (see Fig. 11). Jensen points out that 
the lateral-line scales are extremely variable 
as to number of pores, which is fully corro- 
borated by the present study. 
List of Species Currently Recognized 
The following list shows all the known 
living species of Paralepididae currently recog- 
nized in the literature. The synonyms are as 
given by Ege (1930), Parr (193H), and Maul 
(1945). No attempt is made to put closely 
related species together as so many are in- 
adequately known. 
Sudis squamosa Chapman (1939: 519) from 
south of the Aleutian Islands and Lestidium 
{Bathysudis) parri Chapman (1939: 519) from 
the Gulf of Alaska do not belong in the 
famdly Paralepididae. Hubbs and Chapman 
(1951) have conclusively identified Sudis squa- 
mosa as Mallotus catervarius (Steller) and Les- 
tidium parri as Thaleichthys pad ficus (Richard- 
son). 
Subfamily Paralepidinae Bonaparte, 1846. 
Magnisudis, n. gen. 
"^harysoma, n. sp. (generic type). Pacific, 
off California and Mexico. 
Paralepis Cuvier, 1817. 
'^coregonoides (Risso, 1810) (generic type). 
North Atlantic. 
^speciosa Bellotti, 1878. Mediterranean. 
elongata (Brauer, 1906). Indian Ocean, 
^brevis Zugmayer, 1911. North Atlantic. 
*brevirostris (Parr, 1928). North Atlantic. 
bronsoni (Parr, 1928). Bahamas. 
danae Ege, 1933. Off Cape Verde, West 
Africa. 
Notolepis Dollo, 1908. 
^rissoi (Bonaparte, 1841). North Atlantic. 
*coruscans (Jordan and Gilbert, 1881). 
North Pacific. 
*coatsi Dollo, 1908 (generic type). Ant- 
arctic. 
Lestidium Gilbert, 1905. 
sphyraenoides (Risso, 1810). North Atlan- 
tic. 
intermedium (Poey, 1867), West Indies. 
*ringens (Jordan and Gilbert, 1881). Cal- 
ifornia. 
jayakari (Boulenger, 1889). Indian 
Ocean, off Arabia. 
nudum Gilbert, 1905 (generic type). Ha- 
waiian Islands, New Zealand (.^), Ja- 
pan (.?). 
japonicum Tanaka, 1908. Japan. 
*sphyraenopsis (Hubbs, 1916). California. 
*pseudosphyraenoides (Ege, 1918). North At- 
lantic. 
atlanticum (Borodin, 1928). North At- 
lantic. 
thori (Ege, 1930). North Atlantic, 
danae (Ege, 1930). North Atlantic. 
"^affine (Ege, 1'930). North Atlantic. 
*pacificum (Parr, 1931). Pacific off Mexico. 
proximum (Ege, 1933). Celebes Sea. 
simile (Ege, 1933). Off Cape Verde, West 
Africa. 
luetkeni (Ege, 1933). Mozambique Chan- 
nel. 
bellottii (Ege, 1933). New Guinea. 
mirabile (Ege, 1933). Celebes Sea. 
^philippinum (Fowler, 1934), Philippine Is- 
lands. 
^bathyopteryx (Fowler, 1944). Pacific, off 
Mexico. 
