232 



os eccentros ; rostris nigris : sipho parvus, tennis : tunica reticulata, 

 musiva, coloribus ochraceis, maculis lunatis transvcrsis fuscis ordina- 

 tim picta. Length of body, 3.5 ; breadth, 2 ; length of dorsal arms, 

 14; upper lateral, 18; lower lateral, 20; ventral 15 inches; diam. 

 of largest cupules \ inch. Callao, Peru. 



Its peculiarities are its reticulated surface and narrow transverse 

 chocolate clouds ; its large umbel and broad membranes between the 

 amis, and its appai'ent possession of two pairs of eyes. 



Octopus TETPacus. Corpus magnum, oblongo-ovoideum, fissura 

 longitudinali sub-bilobatum : caput subquadratum, vix corpore dis- 

 junctum, rigidum : oculi parvi, occulti : apertura parva, crescentica : 

 brachii robusti, abbreviati, pro longitudine 2, 3, 4, 1 ; acetabulis ad 

 brachia lateralia majoribus: os minutum, rostris inclusis: umbella 

 ampla : tunica plus minusve verrucosa, superciliis et dorsibus brachiurn 

 superiorum cirrhigeris. Length of sac, 2.5; upper arm, 12; superior 

 lateral, 16 ; inferior lateral, 16 ; inferior, 13 ; breadth of umbel 5 ; of 

 arm, 2-3 ; diam. of largest cupules, £ inch. 



Found near Sydney, New South Wales. Most resembles 0. vul- 

 garis ; the size of the eyes, the arrangement of the cirrhi and other 

 obvious marks distinguish them. 0. rugosus Blainv. has a smoother 

 surface, only a single cirrhus, and arms less developed. 



Octopus furvus. Corpus pyriforme, keve; caput elongatum, 

 deorsum dilatatum: oculi magni, cirrhis tribus superciliaribus ornnti ; 

 pupillo nigro ; iride aurato : brachia longissima, gracilia, subeqnalia ; 

 acetabulis magnis, appi'oximatis : umbella parva : tunica ochracea 

 interdum fuscescens vel cinerascens. Length of body, 6 ; of arms 

 about 40 inches. From the Market, Rio Janeiro. Couthouy. 



Of a remarkably long and slender form and small umbel. It is 

 more slender than 0. tetracirrhus, but the number and position of the 

 cirrhi are different. Its proportions are much as in 0. macropus, 

 but the coloring is different. 



Octopus orxatus. Corpus globosum ; caput dimidiam corporis 

 latitudine adequans: oculi parvi haud proininentes ; pupillo nigro; 

 iride argentato : apertura lata : os parvum, eccentricum : umbella 

 parva: brachia gracilia, attenuata, quoad longitudinem 2, 4, 3, 1, 

 superioribus robustis, alteris gradatim gracilioribus ; acetabulis 

 numerosissimis, confertissimis : tunica reticulato-papillosa, areolis 

 pallidis ovalibus signata ; supra aurantiaca, strigis longitudinalibus 

 flavidis 5, et maculis alternantibus etiam intra-brachialibus variegata. 

 Length along back, 2£ ; breadth, 1| ; of neck, 1 ; of umbrella above 

 mouth, 2 ; below, 1 ; laterally, 3 ; length of arms, upper pair, 20 ; 

 upper lateral, 24 ; lower lateral, 20 ; lower, 21 inches. 



Obtained at Oahu and Maui. Sandwich Islands. 



