NO. 1358. 



JAPANESE SCVLPINS— JORDAN AND STARRS. 



291 



pupil. The vertobrte 12 + 24. An ol)tiise proiniiieiu'e above liinder 

 iiiaigiii of orbit bcurs in young- individuals a .slender eirrus, which 

 frequentl}^ dLsappear.s in adults. Behind the eye a contiiuious oceipital 

 ridge bears P> smaller b'Miy proniinenees, the first ininiediately l)ehind 

 the eye, the second and third approximated at posterior end of ridge; 

 these bear no cirri. In males the post axial region is fuinished with 

 a number of very slender filaments, each of which is expanded at tip 

 into a compressed frond-like lamina, having the free edge more or less 

 laciniate or fringed. These expanded tips are bright white and verv 

 conspicuous. No trace of them is present in females, but they develop 

 in males at a very early age. These agree with the structures 

 described by Pallas, on which he based the name pistilliger. The 

 upper preopercular spine is sharply bifurcate in even our smallest 

 specimens (50 mm.), but in these no trace of a second medial upwardly 



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•yxr 



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T«V'^ 



Fid. 2fi.— 'jYMNOrANTHrs I'ISTII.IJGER. 



directed spine is present. The latter is evident in sp«H'imens T<» nun. 

 and more in length, and a small concealed prominent-e representing a 

 third spine is exceptionally })resent. No trace of slit behind last gill. 

 Very young examples show no groups of granulations on head or 

 nape, these being usually wanting in specimens less than 10(» mm. long. 

 In older examples they are variously developed, the degree of arma- 

 tur(? dep(Mul(Mit neith(»r on age nor sex. They are never armed on 

 interorbital space, the granulations being confined to the occipital and 

 nuchal regions, with an additional elongate ])atch on the upper part 

 of the opiM'cle. In highly developed males the dorsal and ventral 

 rajs are accompanied with series of tubercles. The color is brown 

 above, with very narrow^ vermiculating lines of lighter; a black blotch 

 on cheek, more conspicuous in males, and 4 inconspicuous ci'oss bars 

 on back; the darker dorsal area is bounded below lateral line l»v an 



