FAMILY SIGALIONIDAE 

 Key to genera and species 



1 Body seldom loiigor than 10 mm. No cirriform branchiae on 



elytrophores (Pholoe). [Elytra without concentric growth 



lines, p-orty-five segments or more] P. »ii)iiifa 



1' Body up to 200 mm long. Cirriform branchiae on elytrophores 



after first few segments 2 



2 No median antenna; lateral antennae papilliform (Sif/alidii). 



[Elytra with 8-13 branching papillae on outer margin; one 



stylode on notopodium and two on neuropodium) S. aroiicola 



2' Median antenna present; lateral antennae indistinct and fused 



to base of tentacular segment 3 



3 Com])ound neurosetae spinigerous with laddered blades ending 



in pointed tips. [Median antenna without ctenidia (Lcan'n-a). 

 No eyes, no simjjle neurosetae; elytra without marginal 



papillae or lateral indentations] L. Iiijstricia 



3'' Compound neurosetae mainly or entirely falcigerous with 



sim])le or multiarticulate blades ending in bidentate tips 4 



4 Median antenna with a large ceratophore. Elytra and dor- 



sum encrusted with saiul (Psaiii nioli/ci ). [Ctenidia on cera- 



to])h()re of median antenna] P. ctcitidophoiv 



4' Median antenna with a short ceratophore. Elytra not en- 

 crusted with sand iStliiiicIdis) 5 



5 Eyes present. Usually a few sim])le bi]iectinate setae at superior 



edge of neurojiodium 6 



5' Eyes absent. No simple neurosetae. [Elytra without markings] S. inioculu 



6 External margins of elytra fringed with simple papillae, never 



notched S. boa 



6' External margins of anterior elytra with a few irregular 



])ai)illae and jjosterior ones with a notch S. linncohi 



Pholoe minuta (Fabricius. 1780) 



Sigalion arenicola Verrill. 1879 



PIkiIoc niiiiiita. - Fauvel, 1923: 120, Fig. 44 a-h. 

 -Pettiijone, l!)63a: 46. Fig. 10 f, g. - Day, 

 1%7: 100, Fig. 1. 18. a-f. 



Si</(illiiii itrcincola. - Pettibone, 1963a: 48, Fig. 

 11 a. b. - Nonato and Luna, 1970a: 72, 

 pi. 4: Fig. 46-48. 



Records. — One specimen from 160 m off 

 Beaufort (*). 



Di-tfrihiitioii. — Cosmopolitan; intertidal to 

 2.295 m. 



R, cords. — Three specimens from 20 m off 

 Beaufort (*). 



Distrihatio)!. — Massachusetts to Georgia; 

 Brazil: intertidal to ;)7 m in sand. 



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