. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. HYDROZOA FROM COASTS OF NATAL AND PORTUGUESE EAST AFRICA 8r Nematotheca, length . . . .. . 0-06-0-07 maximum diameter . .. . . 0-03-0-035 Remarks. This species is very close to Z- unilateralis Totton from New Zealand, but differs from it in the proportions of the hydrothecae, which are more slender. Very characteristic is the funnel-shaped diaphragm, which rather resembles that of Z- curvitheca Stechow 1913a. Family Syntheciidae Hincksella corrugata n. sp. Fig. 5 Holotype. PF 12456 J. Description. Hy
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. HYDROZOA FROM COASTS OF NATAL AND PORTUGUESE EAST AFRICA 8r Nematotheca, length . . . .. . 0-06-0-07 maximum diameter . .. . . 0-03-0-035 Remarks. This species is very close to Z- unilateralis Totton from New Zealand, but differs from it in the proportions of the hydrothecae, which are more slender. Very characteristic is the funnel-shaped diaphragm, which rather resembles that of Z- curvitheca Stechow 1913a. Family Syntheciidae Hincksella corrugata n. sp. Fig. 5 Holotype. PF 12456 J. Description. Hydrorhiza creeping on weed, forming a branching network. Stem unbranched, unfascicled, reaching a maximum height of 4 J mm. and bearing up to 5 hydrothecae. Basal part irregu- larly corrugated or annulated, remainder divided into internodes of rather irregular length by oblique nodes. Each internode bearing a hydrotheca, and with 1-3 corru- gations immediately above node. Hydrothecae alternate, the two rows in the same plane, tubular, bending slightly outwards, with about half the adcauline wall adnate. Walls smooth or with faint transverse corrugations. Margin entire, round, slightly everted, forming an angle of about 45 ° with stem, sometimes reduplicated. Gonophores absent. Measurements (mm.) Stem, internode length . 0-50-0-75 diameter at node .. .. 0-15-0-20 Hydrotheca, total length, in centre . . . 0-57-0-73 length abcauline .. . 0-53-0-69 length adcauline, adnate part 0-35-0-45 length adcauline, free part 0-28-0-42 adnate part/adcauline length 0-47-0*61 diameter at margin . 0-41-0-45 Remarks. This species is close to H. cylindrica (Bale), but differs in the proportions of the hydrothecae, which are shorter and wider. In this character. Hincksella corrugata n. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origin
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
