XXXVI ILLUSTRATIONS. 



Page. 

 Fig. 268. — Livoneca vulgaris (After Stiuipson ) 259 



269. — Livoneca vulgaris, a, Maxilliped of female, h, Seventh leg. c, Sec- 

 ond maxilla. <], Fir^t maxilla, e, Palp of mandil)le 259 



270. —Livoneca vulgari.s. Young male 260 



271. — Livoneca califoriiica (After Schiojdte and ^leinert). «, Adult fe- 

 male, b, Lateral view of thorax 261 



272. — Livoneca californica. a, Maxilliped. />, Second maxilla, e, Fir^t 



maxilla, d, Palp of mandil)le 261 



273. — Livoneca californica. Seventh leg 2()1 



274. — Livoneca redmanni (After Schia'dte and Meinert). a, Adult 

 female. 6, Lateral view of thorax of same, e. Leg of seventh 

 pair of young female. <J, Antenna of second pair of sauie. 

 e, Young female. /, Anteuna of first jiair ot same, g, Third leg 

 of same 262 



275. — Livoneca redmanni. a, Maxilliped of female, b, Second maxilla. 



c, Seventh leg. d, First maxilla, e, Palp of mandible 263 



276. — Livoneca ovalis. Al )domen 264 



277. — Livoneca ovalis. a, Maxillii^ed. I>, ]\Iandible. r, Second maxilla. 



d, I'irst maxilla, e, Seventh leg 264 



278.— Irona nana (After Schivjedte and Meinert). «, Adult female, h, 



Young male, c, Y'oung of the secon<l stage. '/, Lngula of the 



leg of the third pair of same 267 



279. — Limnoria lignorum ( After Harger) 269 



280. — Limnoria lignorum (.After Harger). a, First antenna, b, Second 

 antenna, c, Maxilliped. (/, Second maxilla. '', First maxilla. 



/', Distal end of first maxilla. /, Mandible 270 



281. — Limnoria lignorum (After Harger. ) a, Last seguient of al)domen 

 with uropoda. b, Uropod. e, Fii-st pair of pleopoda. d, Second 



pleopod of male 270 



282. — Ancinus depressus. Abdomen with uropoda 272 



283. — Cassidisca lunifrons 273 



284. — Cassidisca lunifrons. Maxilliped 273 



285. — Cassidisca ovalis. Abdomen with uropoda 274 



28(). — Tecticeps alascensis 276 



287. — Tecticeps alascensis. a, .\ntenna of first pair. Ii, Antenua of sec- 

 ond pair 276 



288. — Tecticeps alascensis. '/, Mandible. I>, Mandibular ap]>endage. 



c, ]Maxilliped 277 



289. — Tecticeps alascensis. a, Leg of lirst pair. /;, Last two joints of 

 same, c, Leg of second pair of male. (/, Leg of third pair, f, 



Leg of sixth pair. /, Leg of seventh pair 277 



290. — Tecticeps convexus. a, Head. I>, Abdomen and last tlioracic seg- 

 ment 279 



^ 291. — Tecticeps convexus. a, Maxilliiied. b, Second leg of female. '•, 



First leg. d, Mandible, e, Second maxilla. /', First maxilla 279 



292. — Spha^roma (|uadridentatum ( After Harger) 281 



298. — Sphicroma (iua<lridentatum. a, Mandible, b. Frontal lamina and 



clypeus. c, Maxilliped 281 



294. — Sphicroma destructor. Dorsal view 282 



295. — Sphteroma destructor. Mandibular appendage 283 



296. — Sphjeroma destructor, a, Leg of second pair, b, Leg of fourth 



pair, c, T^eg of fifth pair. d. Leg of sixth pair 283 



297. — Splueroma destructor. Al)domen with uropoda and last segment 



of thorax 284 



