266 Soiitlicyii Cross. 



soiuctinu'S scattered over the surface, ?.f., extra-marginal, as shown 

 in til,'. 2, ri. XLI. The rest of tlie clytral surface is beset with 

 very minute bosses resembling the pustules on a much smaller scale, 

 but nut like the definite spines noted in the preceding variety. 



An interesting point is raised by the contemplation of tig. 3, 

 ri. XLI., namely, as to the probability of Hcrmadioii hmnicirrntus, 

 Kinl)erg, being co-specific with Harmotlioe spinosa. What makes 

 the former a Hcrmadion appears to be merely the exposure of free 

 segments behind the elytra, as iu Layisca} If, however, this 

 character fails to prove a sure guide, as in the case of the lagiscoid 

 variety described above, then the extraordinary resemblance between 

 the posterior and anal cim of the example figured here and those of 

 Kinberg's specimen of Hermadion long icir rectus {' Eug. Eesa.,' Taf. YI., 

 tig. 33) cannot fail to impress, the chief difference being that, in the 

 latter, some of the posterior segments were not concealed by the elytra. 



I'rof. Ehlers (1897) is doubtful whether Hcrmadion lonfjicirratus 

 should be separated from H. magalhaensl, Kbg., the two forms 

 having been obtained at the same point of the Magellan Strait. As 

 indicated above, my observations rather lead me to Ijelieve that 

 Kinberg's H. lomjicirratus is generically distinct from H. mar/alhacnsi, 

 and belongs to the series of HarinotJioe sjyinosa. 



The form known as Larjisca vesiculosa (Gr.) is not contained in 

 this collection. It chiefly differs from the typical //. spinosa in the 

 presence of vesicular swellings at the posterior border of the elytra 

 in addition to the smaller pustules, some of which are borne upon 

 the vesicular elevations. 



I'rof. Ehlers (1897, p. 15) has the following suggestive remark : 

 " r>ei grosserem Material wird sich feststellen lassen, ob die Poli/noe 

 vesiculosa [i.e. Lagisca vesiculosa (Gr.) = L. antarctica, Mclnt.] uicht 

 ganz iu den Varietiitenkreis der Harmotlioe spinosa, Kbg., einzube- 

 ziehen ist." 



2. HAiiMOTnoii crossetensis. 



(ri. XLIIL, figs. 3 and 9-11.) 



Lagisca crosetensis, Mclntush, 1885, ' Chalhnger ' Rep., p. 88. 

 Elytra liirsuta parce finibriata, spinis niagnis coiifertis iiiiiuita. 



The collection contains two specimens dredged in 2G fathoms 

 olf Cape Adare in company with //. spi7wsa, var. typiea, etc. They 

 are well-marked forms, presenting a hirsute appearance, due alike to 



' TliC tyjic of Hermadion is //. magalhaensi (sic), Kbg., a well-marked species 

 not represented in the ' Southern Cross ' collection. As employed by Kiuberg, his 

 genus Jkrmadivn alsn ii.cluded Mahngrcn's conception of Lagisca. 



