GENEEA, SPECIES, &C. 
Spong. G 
Mecznikowiinoi (= Metschnihowinm of 1878), (2) p. 232. A Family 
placed midway between the higher Rcnierinoi and the DcaraacidiruB. 
Mecznihowia \_Metsclin. of 1878], Grimm, and M. tuherculata and M. 
intermedia, Grimm, characterized ; (2) p. 233. 
Protoschmidtia, Czerniavsky [cf. Zool. Rec. xv.], (2) p. 95. Inter- 
mediate between Amorphina and Schmidtia. 
Tedaniella, Czerniavsky [cf. Zool. Rec. xv.], (2) p. 124.* Has four 
kinds of spicules, viz. : simple acerate, simple acuate, short cylindrical 
rounded at both ends, and a slender form blunt at both ends. 
Protoesp>eria, Czerniavsky {^cf. Zool. Rec. xv.], (2) p. 248. Between 
Pellinula and Esperia, with irregular internal skeleton, and sub-fibrous 
reticulate dermal skeleton. Spicules chiefly acerate. Bihamates and 
anchorates as in Esperia. Form various. 
Desmacidince, Schmidt, emended by Vosmaer, (13) p. 104, so as to 
comprise Monactinellid Sponges with bianchorate .spicules, either accom- 
panied or replaced by bows or [and] bihamate spicules ; smooth and spined 
linear spicules, varying in shape, always present. 
Desmacidon and Esperia, (9) p. 81. Schmidt declines to name new 
species from the West Indian region, owing to the variability of the 
spicules and soft parts of these genera. 
Desmacidon jeffreysi', Bowerbank, (1) p. 37. Found without the 
bihamates in Gulf of Manaar. Carter is inclined to place it among the 
Cavochalinida, as type of a new group. 
Esperia, Nardo, revised by Vosmaer, (13) p. 139, Isodictya rohusta, 
Bowerbank, and many other species being added to it. See also, (2) 
p. 256. 
Esperia, sp. Section figured by Kent, (G) pi. vii. fig. 2, showing the 
minute structure of the soft parts. 
Esperia tunicata, Schmidt, (1) p. 49, Gulf of Manaar. 
Desmacodes, Schmidt, (13) p. 104. Revised by Vosmaer, numerous 
species of Carter & Bowerbank being added to those of Schmidt. 
Desmacella, Schmidt, (13) p. 109. Revised ; IlalicJiondria falcula, 
Bowerbank, added to the genus. 
Myxilla, Schmidt, revised, (13) p. 123 ; Microciona Jictitia, Bowerbank, 
and numerous other species are added to it. 
Desmacidon, Bowerbank, revised, (13) pp. 130 & 159; Esperia villosa, 
Carter, Ilalichondria incrustans, Bk., and Rhaphidoplus cratitius, Ehlers, 
and 2 spp. nn. added to it. 
Sclerilla, Schmidt, Crihrella, Schmidt, Chondrocladia, Wyville-Thom- 
son, Cladorrhiza, M. Sars, Sceptrella, Schmidt, (13) pp. 122 & 136, &c. 
Hymeniacidon macilenta, Bowerbank, = young state of Rhaphiodesma 
sordida, Bowerbank: J. G. Waller, J. Quek. Club, 1880, p. 98, pi. v. 
fig. 1. 
Rhaphiodesma, relations of British species ; id. ibid. 
Bursalina muta, var., (9) p. 79, pi. x. fig. 4. 
Polymastia stipitata, Carter, (9) p. 79, pi. x. fig. 5, from Caribbean 
Sea ; = Stylorrhiza, Schmidt, g. n., vide infra. 
^ Tedaniella cylindrifera of 1878 is here given as cylindrigera. 
