V8TER M "I NORTH r\ \M> VDJACKNI WATKILS KISI1EK 



Mil 



Type t>f forma ditpar.— In Yale Museum 



Type locality Dutch Barbor, (Jnalaska (formed 



/< trUnttion afforma diapat Attn Mand to the Shumagiu Islands and southern 

 Berii - Pribilof Islands). The Bubspi par extendi from ffodiak Island 



(forma nitida to Attn (forma diapar . 



8pt Eight] 



• of Leptatterias ramttchatica dispar 



K. r: ,rk* 



M. 



3 lypleal dUfar Intrrmrtiatr. -Uo- 



ford. 



' . n B Hull; Intermedial*. 



Do 



. 1 1 Banna, II Heath 

 Stanford; II. Heath. 



M ; 1 Intrrmwilate 

 ■ U 

 I - N M u 11 Dal] 187); All'etroe*, June 10, 

 1908 



1.KPTASTKKIVS M 1 I Mi'A.M 



Figures I. la l<-; Plate 60, Figurea 2, 3 



Diagnosis. Rays six Differing from /. eemtecAottca «/.-/»jr in having shorter, 

 thicker rays; more numerous, closer eel abactina] Bpinelets, which have the appear- 

 ance of a rather even, close, granuliform covering; relatively larger BUDeromarginal 

 plates, which with their groupe and combs of four to six spines form a broader band 

 along the dorsolateral border of ray. Simian pedicellariae small, ovate or o\ 

 lanceolate, acute or obtusi Resembles a small /.. aequalia without longiserial ar- 

 rangemenl of the abactina] plates K 28 nun . r 10 mm., K 2 s r. breadth of ray 

 at base in mm. 



/'. cription Rays short, robust Abactina] surface arched, covered with many 

 small, close-set, uniform Bpinelets, which give the whole abactina] area the appear- 

 ance of being covered with granules, In small examples separate plates not ea 

 distinguishable; in largest specimens, such as type, the small papular arias serve to 

 mark oir groups of spin, lets In tin- type, the largest plates (the carinals) carrj 8 

 to l"> Bpinelets, the dorsolaterals S or 6 The Bpinelets are chai ally 



thorny (t a to "4 mm. long on abactina] plates The irregular carinals somea' 

 have considerabl] more robust Bpinelets than dorsolaterals Dorsolateral skeleton 

 an irregular reticulum with the equivalent of about six longiseriee of papular areas 

 for the whole abactina] area, only those adjacent to Buperomarginals at all regular. 



Superomarginal plates with four to six Bpinelets (usuallj three or four in small 

 specimens) which distally form a vertical comb and proximallj more often a group 

 Exceptionally there are as man\ as eight to a group The Bpinelets are a little longer 



than the ahaetinals, rather Btubb] ami Bubclavate, sometime- . urved They form a 

 63100—30 8 



