108 THE PUR SEALS OF THE PRIBILOF ISLANDS. 



7. C!nticalar bands, 32 u bi-oad ; dorsal lip divided into a large base, and a very small anterior 



bilobed projection; second portion of oesophagna generally sigmoid. 

 Male: 31 to 70""" long; with 9 to 10 (11) pairs of ])08tanal papillae, of which 1, 2, 3 are conical 



and near the tip, 4 to 10 (11) shorter and nearer the cloaca; prac^anal papillae nninerons, 



arranged in three rows each side; lelt (3"'"') spicnle about three times as long as right 



(0.96""") spicule. 

 Female: 37 to 90""" long; vulva near middle of the body. 



Hosts: DclphmiiH and Prodclphinua; Atlantic and racific oceans A. typica (p. 127). 



Cuticular bands 24 fi broad; lips not well studied, but apparently of nearly ecpial size. 



J^Iale : unknown. 



Female: (52 to 75""" long; of a dark brownish or white color. 



Host: Odohoiim roKmanis A. hieolor Baird sp. iiKj. (p. 138). 



8. Lips of nearly e<]u:il size; intestinal caecum present. 



Male: 85 to 115""" long; one pair of i)ostanal papillate, fimr pairs of i)r;ieaiial papillae; spicuh's 



short. 

 Female: H5 to 111""" long; vulva one-third to two-thirds the length from anterior extremity. 



Host : DiigoiKj dut/oti A. hiilirorlx (ji. 117). 



Host: Antarctic seal (genus? spec^ies?). Wings said to extend the whole length, becoming 



thicker at distal extremity. Worms 37 to 50""", of a dark olive color. 



A. ximilis, sp. inij. (]>. 146). 



9. Cuticle immediately back of lips, in deep folds; posterior i)ortion of o<'sopbagu8, including 



oe.sophageal caecum, between one-third and oiie-balf as long as anterior portion; cuticular 

 bands 8 /< broad, without tincr striation. 



Male: 31 to 70""" long; 8 to 10 ])airs of postanal papillae, of which 1 to 4 arc near the tip, 

 and one i)air of doubli^ i)apillae between these and cloaca; 30 or more pairs of praeanal 

 papillae, arranged on each side irregularly or in a double row; spicules equal, 3 to 8"'" 

 long. 



Female: 40 to 80""" long; vulva on a prominent tranverse ridge about one-third the length of 

 the b(»dy from the head. 



Host: I'lioca, Halichoerua, Slvitorhyiiclnts, Eumelopias; cosmopolitan A. osculaUi (p. 151). 



Posterior portion of oesophagus, with oesophageal caecuim, scarcely onii-sixth as long as anterior 

 portion. 



Male: 40""" long; 12 pairs of postanal pajjillae, of which 1 to 3 are near the tip, 4 to 12 irregu- 

 larly arrang(;d; praeanal papillae in a single row. 



Female: 50""" long; vulva about one-fourth the length of the body from the head. 



Host: I'lataiiisUi (janijelica; Ganges •/. lohidata (p. 159), 



10. No dc^tails of structure known. 



Hosts: I'lalaniula and the extinct /fydrodamalis 11 



First portion of oesophagus 5""" long; second portion 1.5""" long, sigmoid; cuticular bands 



29 to 30 n broad; head 0.4""" broad; lips small. 

 Male: 79""" long, tail curled, caudal alae present with X to lOpjipillae; s]iicnles unoiiual (27 : 15). 

 Femal(!: 70 to 100""" long, vulva 25 to 10""" from anterior extremity. 

 Host: Dolphin (gen.? si). ?), Indian Ocean .(. Dumiiankrii (p. 161). 



UNIDKNTII'IAIJLK SI'KCIKS. 



11. Host: Dolphin of the G:iQ<^^'s (riataniaia t/angetica) nearCalcutta. Length ov(!r 



an inch long /. delphini (p. 162). 



Host: Steller's extinct s<!a cow (Hi/drodamalia yigas) Bering Sea. Lcingth 



"half afoot" A. rylinav (p. 163). 



I. Intermediate lips absent. 



A. Dentigerous ridge present (m lip. 

 a. Dentigerous lidge simple. 



oc Cuticle with broad cuticular bunds, and nairow fraMsverse striae; spicules of 

 nearly e(]ual length. 



