Gills almost always nine in number on each side; 

 efferent channels opening at sides of endostome or 

 palate. Antennules longitudinally folded (Rath- 

 bun, 1925). 



Family Majidae 



Chelipeds specially mobile, usually about same 

 size as other legs with fingers straight. Second 

 article of antenna well developed, generally fused 

 with epistome and often with front. Orbits gen- 

 erally more or less incomplete. Hooked hairs al- 

 most always present. Male openings coxal (Borra- 

 daile, 1907). Palp of external maxilliped articu- 

 lated either at summit or at anterointemal angle 

 of merus (Alcock, 1895). First pleopod greatly 

 exceeding second pleopod in length (Garth, 1958). 



KEY TO SUBFAMILIES OF MAJIDAE IN THE 

 CAROLINAS 



Modified after Garth (1958) 



a. Eyes either without orbits, or with commencing orbits, 

 b. Eyes without orbits ; eyestalks generally long, either 

 nonretractile, or retractile against sides of carapace, 

 or against acute postocular spine affording no con- 

 cealment ; basal (fused) antennal article extremely 



slender and usually long Inachinae (p. 236). 



bb. Eyes with commencing orbits; basal (fused) an- 

 tennal article not extremely slender, 

 c. Eyes lacking a postocular cup, but with tubelike 

 housing. 



d. Eyestalks long ; orbit partially protected by a 

 hornlike supraocular spine or eave, a strong 

 postocular tooth, or both ; body truncate in front 

 Ophthalmiinae (p. 246). 

 dd. Eyestalks short, relatively immobile, and either 

 concealed by a supraocular spine, or sunk in 

 sides of rostrum ; basal antennal article truncate- 

 triangular Acanthonychinae (p. 248). 



cc. Eyes with cupped postocular process into which 

 eye retracts, and with a supraocular eave or spine 



Pisinae (p. 250). 



aa. Eyes with complete or nearly complete orbits ; basal 



antennal article broad, expanded to form floor to orbit 



Mithracinae (p. 254). 



Subfamily Inachinae 



Eyes without orbits; eyestalks generally long, 

 either nonretractile, or retractile against sides of 

 carapace, or against an acute postocular spine. 

 Basal article of antenna extremely slender 

 throughout its extent, and unusually long (Al- 

 cock, 1895). First pleopod not very stout, straight 

 or curved, apically tapering, but apex most vary- 

 ing (hairy, spinose, naked, etc.; acute, blunt, bifid, 

 etc.) ; second pleopod short (Stephensen, 1945). 



236 



KEY TO GENERA OF INACHINAE IN THE 

 CAROLINAS 



Modified after Garth (1958) 



a. Seven free abdominal segments in both sexes ; rostrum 



double Anomalothir (p. 236). 



aa. Six free abdominal segments in male, five in female, 

 b. Rostrum double. 



c. Interantennular spine present and conspicuous, 

 d. Spine of basal antennal article equally advanced 



with front Eupvognatha (p. 237). 



dd. Spine of basal antennal article not equally ad- 

 vanced with front Batrachonotus (p. 238). 



cc. Interantennular spine absent or inconspicuous. 



Collodes (p. 239). 

 bb. Rostrum single. 



c. Merus of outer maxilliped as broad as ischium; 

 palp of moderate size, 

 d. Postorbital tooth large, curving around side of 



eye Pyromaia (p. 240). 



dd. Postorbital tooth small, or if large not curving 



around side of eye Anasimus (p. 240). 



cc. Merus of outer maxilliped often narrower than 

 ischium ; palp large and coarse, 

 d. Rostrum considerably less than postrostral 

 length ; basal antennal article often longitudi- 

 nally sulcate Podochela (p. 241). 



dd. Rostrum approaching or surpassing postrostral 

 length ; basal antennal article not longitudinally 

 sulcate. 



e. Carapace nodulose; a long spine at end of 



merus of walking legs ; rostrum sparsely spined 



Metoporhaphis (p. 243). 



ee. Carapace smooth ; spine at end of merus of 



walking legs no longer than others ; rostrum 



multispinose Stcnorynchus (p. 244). 



Genus Anomalothir Miers, 1879 



Rathbun, 1925, p. 23. 



Anomalothir furcillatus (Stimpson) 



Figures 212, 223A 



Anomalopux furcillatus Stimpson, lS71a, p. 125. 

 Anomalothir furcillatus: Rathbun, 1925, p. 24, text-fig. 6, pi. 8, 

 fig. 2 ; pi. 9, fig. 2 ; pi. 206 ( rev. ) . 



Recognition characters. — Carapace much elon- 

 gated, almost subcylindrical, pubescent, with 

 regularly placed tubercles. Rostrum long, from 

 two-thirds to 1.25 times as long as remainder of 

 carapace, bifurcate, horns contiguous for half or 

 more of length, slightly divergent. Eyes without 

 orbits; pre- and post-orbital spines small, acute. 

 Antenna visible in dorsal view, basal article nar- 

 row. Merus of maxilliped without notch at inner 

 angle where palp inserts. 



( 'helipeds in adults longer than carapace; merus 

 subcylindrical, with row of small spines below 



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