1 28 



HI'LLETIN OF THE Hl'RKAU OK FISHERIES. 



of tin 1 third legs and two large lobes mi the posterior border of the second legs in addition lo the 

 regular accessory organs; testes medium size, hemi-ellipsoidal. 



Color yellowish horn color, mottled with thick plack pigment arranged in more or less radiating 

 spots and hands, often so dense as to make the creature almost, entirely 1 (lack. Pigment sometimes 

 dark reddish brown, inclining to purple, especially in the smaller specimens. The only black or very 

 dark Argulus and the only species in which the male is larger than the female. Length of male 5-7 

 mm.; length of carapace 3.5-4 mm.; breadth of carapace 3.2-8.5 mm.; length of abdomen 1.3 mm.; 

 breadth of abdomen 1.1 mm. Female two-thirds this size. ( Description from living specimens. ) 



Found most commonly upon the eel ( Anguilla chrisypa) and various members of the Pleuronectidse 

 ( Pseudoplt uronectes americanns, Paralichthys dentatus ). May be looked for occasionally upon the tomcod 

 i Microgadus tomcod), upon skates, sculping, and species of blenny. Deposits its eggs in August (14th) 

 and the last of October (October 20-30). Larva- unknown. 



Argulus latus Smith. Female only known. 



Carapace orbicular, wider than long, scarcely covering the second pair of legs; posterior sinus 

 narrow and about one-fifth the length of the carapace; eyes large and very far forward. Abdomen 



Argulus latus Smith. Female, a, Doisai surface; l>, ventral surface; c, posterior maxilliped; -/. lirsl and second antenna 



narrow, elliptical, one-third as long as the carapace; anal sinus triangular, papillae basal. Antenna' 

 small but well-armed, widely separated; sucking discs very large and widely separated; posterior 

 inaxillipeds stout; basal plate uniformly papilla ted anil prolonged backward as a whole without teeth 

 or lobes. Swimming legs all reaching beyond the carapace, without tlagella; lobes on the posterior legs 

 small, rounded, triangular. Color yellowish-white, becoming brown in alcohol. Length 2.3 i 



length of carapace 2.2 



breadth of carapace 2.5 mm.; length of abdomen 0.7 mm. ; breadth of 



abdomen 0.45 nun. ( Description from alcoholic specimens, i 



Has been taken only at the surface, one specimen at W< 

 females. Egg deposition and larva- unknown. 



ds Hole ami one at Casco Bay, both 



