Hughmilleria socialis Sarle
Page 335
See plates 59–62
| 1 | Middle portion of first two sternites to show female genital appendages, the overlap of the metastoma upon the opercular appendage and that of the latter on the next appendage. × 2 |
| 2 | First two sternites showing male appendage, from the inside of body. × 2 |
| 3 | Middle portion of operculum and second sternite showing fused parts of female opercular appendage and lanceolate shape of appendage of second sternite seen from inside of body. × 2 |
| 4 | Half operculum with attached female opercular appendage. Natural size |
| 5 | Male genital appendage, a portion of which is scaled away furnishing a cast of the interior. × 3½ |
| 6 | Male genital appendage. Natural size |
| 7 | The free portion of the opercular appendage of a female showing the point of overlap and fusion of the two parts. × 2 |
| 8 | Second tergite showing the antero-lateral lobes. Natural size |
| 9 | First postabdominal ring segment. Natural size |
| 10 | Half of male operculum showing the face of the median cleft. Natural size |
| 11 | Half of female operculum showing the face of the median cleft. Natural size |
| 12 | Section showing the cylindrical form of the postabdomen. Natural size |
| 13, | 15 Two views of telsons showing the dorsal carination. Figure 13, × 3½; figure 15, × 2 |
| 14 | Uncompressed telson. × 2 |
Hughmilleria socialis Sarle var. robusta Sarle
Page 340
| 16 | Fragment of abdomen showing relatively great width and abrupt postabdominal contraction. Natural size Horizon and locality. Pittsford shale. Pittsford, Monroe co., N. Y. |
The originals are all cotypes of the species and deposited in the State Museum
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