FISHERY BULLETIN: VOL. 70, NO. 2 



CHOXE MINUTA Hartman, 1944b, p. 280; 



1969, p. 671.- Rioja, 1963, p. 218. 

 ICHONE TERES.- Okuda, 1934, p. 236; 1946, 



p. 171.- Imajima and Hartman, 1964, p. 365. 



Diagnosis: A small Chone species with ventral 

 shields. Six to eight radioles connected for ap- 

 proximately one-half of length by palmate mem- 

 brane, with free ends of variable length. Collar 

 low, almost level, barely covering the branchial 

 basis, with overlapping dorsal ends. First 

 bundle of setae large, on same level as following 

 notosetae. Conspicuous rounded notopodial lips 

 in thorax. Spatulate setae with long pointed 

 tips. Anterior abdominal uncini with rostra 



longer than bases, with several rows of teeth in 

 several columns; crowns posteriorly much high- 

 er, bases rounded. 



Material studied: Two syntypes from off 

 Santa Cruz, Calif. Dr. M. H. Pettibone (per- 

 sonal communication) suggested that following 

 Moore's handwritten label, the smaller, complete 

 specimen should be designated the holotype, 

 USNM 17319. 



Dillon Beach, Calif., July 1933. Collected by 

 0. L. Williams; originally identified as C. minuta. 

 AHF 003229, 11 specimens of a larger sample. 



Fort Bragg, Calif., abundant in tunicate and 

 Lissodendoryx colonies and eel grass, 29 June 



Figure &.— Chone ecaudata; a-c, f from types d, e, and k from USNM 40304, h, i from 

 AHF 2720, g, j from AHF 2721, 1, m from USNM 45267: a, b, ends of dorso-lateral 

 and ventralmost radioles; c, dorsal view of anterior end, branchial crown omitted (para- 

 type) ; d, same view, with opened collar; e, ventral view of anterior end of specimen 

 in Figure d; f, spatulate seta from third setiger; g, bayonet-type setae; h, i, largest 

 and smallest uncini from 18th abdominal setiger (out of 25 total). Figure i is enlarged 

 twice over Figure h; j, dorsal staining pattern in midthorax; k, end of lateral radiole; 

 1, uncinus from third abdominal setiger; m, uncinus from 28th abdominal setiger, 20 /^ 

 high. 



474 



