396 
M. Oscar Schmidt’s Remarks upon 
number of tentacles, which are already developed in their full 
number in the buds, scarcely occur, any more than varieties 
of the whole animal, which lives in innumerable multitudes in 
the passages of the horny sponges, often in company with L. 
cochlear. 
L. phascolosomatum , in the form of the body and the length 
of the peduncle, comes next to L. tethyce. It is distinguished 
therefrom by the number of tentacles, which, according to 
Vogt’s statement, run up to eighteen in individual examples, 
while the ordinary number seems to be fourteen or sixteen. 
Vogt’s figure (pi. xi. fig. 5) with fifteen tentacles is evidently 
founded upon a mistake, as is also the case with Claparede’s 
figure of a L. Refersteinii with thirteen tentacles (Zeitschr. f. 
wiss. Zool. 1874). As regards another (pi. xi. fig. 2) of my 
honoured Genevan friend’s figures, I must admit, without pre¬ 
judice to the unqualified recognition of his artistic preeminence, 
that I should see in it a sea-serpent rather than a female Loxo- 
soma. On Vogt’s assertion that his Loxosoma is of separate 
sexes we shall speak hereafter. Moreover I am not convinced 
of the disappearance of the pedal gland in the adult state. Of 
tins we shall speak under the next species. Vogt has not 
stated on what Phascolosoma, his species lives. I have from 
Naples a Phascolosoma Stromii beset with Loxosoma ; the 
contractions produced by the alcohol prevent identification. 
L. crassicauda. —Salensky made his observations in Naples 
in the summer of 1874, but only published them in the autumn 
of 1877. The present species is characterized by the numerous 
tentacles (as many as eighteen), the buds sprouting forth four 
on each side at the same time, and the disappearance of the 
pedal gland. Upon Salensky’s remark that of the eighteen 
arms two are rudimentary (lie shows seventeen arms in his 
fig. 1), no stress is to be laid, as in his fig. 10 we see all the 
eighteen arms completely developed. Upon its mode of occur¬ 
rence its discoverer remarks, 11 Loxosoma crassicauda inhabits 
the tubercular shells of an Annelid of which I have been 
unable to determine the species.” I think I can hardly be 
mistaken in regarding the unknown Annelid as Phyllochceto- 
pterus socialis , Clap.; and I further believe that Salensky, who 
witnessed the remarkable alteration in the form of the end of 
the peduncle during the transition of the bud into the adult 
condition, overlooked the retention of the gland. Thus, in 
the spring of 1877, when I was seeking in vain for Loxosoma 
neapolitanum upon Phyllochcetopterus socialis , I found abun¬ 
dant specimens of another species, which I regarded as new 
until I obtained Salcnsky’s memoir. The agreement is com¬ 
plete both in the figure and description, except as regards the 
