bo 
Mey 
100 
Head without distinct frontal border; lateral borders wanting. Genital area longer 
thant \broadh. 4) se cae ees pee a he ee eee ee 26. S. microcephala G. and B. 
Antenne quite rudimentary. A tuft of hair near the base of each mavxillula. 
Group: S. Leuckartii Sal. 
including the following species: .. . 7. S. elegantulan. sp., 2. S. Atylin. sp., 3. S. danica 
n. sp., 4 S. vestita n.sp., 5. S. Leptocheiri n. sp., 6. S. messinensis 
n. sp., 7. S. chinensis n. sp., 8. S. antillensis n. sp. 
Antenne pretty well developed. No hair-tufts near the base of the maxillule ... 3 
Frontal! marein without; expansion imi they middle) a4 is elen a eileen nenen ener 4 
Frontal margin with a flatly cup-shaped expansion in the middle . . 25. 8. frontalis n. sp. 
Trunk covered with short hairs, 2- or 3-branched at their basis............ 5 
Mrinkenaked ors wath rather tew-simp] eunalrs is teas menln ennai 6 
Caudal stylets situated between the genital apertures. The trunk thickly covered 
WED} WAITS; se cas, aap o5sctte Sockge eecle reel (auc ece mene CM Re IMs ee 9. S. Calliopwi n. sp. 
Caudal stylets situated behind the genital apertures. Hair-covering less thick. 
10. S. irregularis N. sp. 
Trunk fastened to the host by a very short ventral thread. . . 77. 8. paradoxa n. sp. 
Trunks never attached stomthehoStitsmemce nena mentee t nem meneame ena area ee a 
Trunk-legs — if found — cylindrical, with two sete .................. 8 
Trunk-legs distinct, rounded eminences without sete .... 24. S. Acanthozonis n. sp. 
Maxillipeds good-sized; their basal jot much longer than that of the maxille ... 9 
Maxillipeds rather small; their basal joint not much longer than that of the maxille. 
28. 8. Dulichie n. sp. 
Drunk-legs sit found we withesh ort SCtce mena sien meinen en ae 10 
One of the terminal set of the trunk-legs remarkably long, about three times as long 
as! the, legs iste Vacca ane eens ears eee rs ee ee 21. S. longipes n. sp. 
Genital area naked or with rather few and — as a rule — scattered hairs .... 11 
Genital area provided on each side with a curved line of long hairs. 
15. S. Holbolli n. sp. 
Genital fareastormin syeassolidsp] ate semama ae ean nee 12 
Genital area for the most part thin-skinned, the more solid chitine forming a greater 
part ola; TING 2. sce sy AE NS co Sega S Glan Se One A eee ee 13 
Numerous hairs between the base of the maxilla and the maxillipeds. Genital area 
witha mumber ol scattered hairsvae ae cee ee ene 16. S. intermedia n. sp. 
No hairs between the base of the maxilla and the maxillipeds. Genital area naked. 
17. S. capensis n. sp. 
No transverse list between head and trunk behind the base of the mavxillipeds. 
13. S. Argisse@ ni. sp. 
