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Figure 10 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 10. SEM of Megalomma cf. miyukiae, AM W35502: (A) anterior thoracic chaetiger and posterior peristomial ring collar, ventral view; (B) same, dorsal view; (C) notochaetae, first chaetiger, ventral view; (D) inferior thoracic chaetae, anterior chaetiger, ventral view; (E) whole fascicle; (F) thoracic uncini; (G) abdominal uncini; (H) companion chaetae; (I) anterior abdominal neurochaetal fascicle.

Figure 6 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 6. SEM of Megalomma cf. acrophthalmos, MAGNT W14008. (A) dorsal collar margins with dorsal lappets; (B) lateral collar margins and anterior thoracic chaetigers, lateral view; (C) anterior collar margins and ventral lappets; (D) chaetae first thoracic chaetiger, ventral view; (E) chaetae of second thoracic chaetiger, ventral view; (F) uncini, same segment; (G) uncini last thoracic segment; (H) companion chaetae posterior thoracic chaetiger; (I) chaetae, anterior abdominal segment; (J) uncini, same chaetiger.

Figure 3. A–N, Vermiliopsis cylindrica n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 3. A–N, Vermiliopsis cylindrica n.sp. (A) tube of holotype, AM W21406; B–G, a specimen from AM W21434: (B) whole worm, showing its short and broad chitinous operculum, its cap contracted into a concavity, with a central peak, and the extent of the thoracic membranes; (C) left ventrolateral view of thorax showing the ocellar cluster, termination of the thoracic membrane, the contracted proximal bulb-like part of the operculum, the peduncle, and numerous radioles; (D) enlarged drawing of operculum showing its transparent chitinous distal part, a single chamber with its terminal part contracted into a concavity, and peduncle contracted into several irregular folds; (E) the cushion-like swelling (pygidial gland) at the posterior end of abdomen; (F) thoracic uncini; (G) anterior abdominal uncini; (H,I) two views of the operculum of specimen from AM W21434 showing an un-contracted dome-shaped distal part, a single transparent chamber below it, its contracted proximal bulb-shaped part (partly into the transparent chamber), and contracted peduncle; (J) anterior end of a small juvenile specimen showing operculum and extent of thoracic membranes; (K) tube fragment found together with a specimen from AM W21434 (doubtfully included here); confirmation necessary as to whether such a circular unattached part can occur in this species. L,M, specimen from AM W21434: (L) anterior end of worm; (M) operculum; both show an un-contracted proximal bulb-shaped part, and a cylindrical distal part, the latter consisting of 3 partitions preceding the terminal chamber; (N) operculum of a specimen from AM W21471: it is similar to that of the preceding specimen, but has two partitions proximal to the cylindrical chamber.

Figure 2 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 2. Photographs. (A–E) Megalomma phyllisae n.sp., holotype AM W13643: (A) anterior thoracic chaetiger and branchial crown, lateral view; (B) subdistal compound eye in dorsal most radiole; (C) posterior peristomial ring collar and anterior thoracic chaetigers, dorsal view; (D) same, ventral view; (E) posterior abdominal chaetiger and pygidium, dorsal view. (F–I) Megalomma trioculatum (paratype, USNM 38409): (F) radiolar crown and anterior segments, lateral view; (G) dorsal collar margins; (H) ventral lappets and anterior segments, lateral view; (I) dorsal most radiole with compound subdistal eye. (J–M) Megalomma interrupta n.sp. [Continued on facing page…]

Fig. 33. Transorchestia marlo n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 33. Transorchestia marlo n.sp., paratype female, 13.6 mm, O2–5, AM P69139, mouth of the Erskine River, Victoria; holotype male, 18.6 mm, PL1–3 and BR2–6, AM P69136, near mouth of Separation Creek, Victoria. Scales represent 0.5 mm.

Figure 10. A–E in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 10. A–E, Pomatostegus actinoceros, specimen from AM W21438. (A) 6-tiered operculum, with the seventh in the process of being formed at the distal end of the fleshy part of the operculum (see text); (B) bayonet chaeta from the collar fascicle; (C) thoracic uncini; (D) anterior abdominal uncini; (E) posterior abdominal uncini.

Figure 13 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 13. First of two parsimonious trees of 39 steps with consistency index of 0.48 of and retention indices of 0.67. Black dots represent synapomorphies and white dots homo- plasies. Jackknife support are in all clades below 37 with the exception of the Megalomma clade with 100 support value. The second MPT differs in the position of M. nechamae, as sistergroup of the clade M. lanigera–M. suspiciens.

Figure 3 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 3. SEM of Megalomma phyllisae n.sp., paratype AM W35476: (A) chaetae last thoracic chaetiger, ventral view; (B,C) companion chaetae same chaetiger; (D) uncini same chaetiger; (E) uncini anterior abdominal chaetiger; (F) Anterior abdominal chaetae, dorsal view; (G) detail of inferior abdominal chaetae same chaetiger.

Fig. 30. Transorchestia marlo n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 30. Transorchestia marlo n.sp., paratype male, 15.5 mm, habitus and head, AM P69137, mouth of the Erskine River, Victoria; holotype male, 18.6 mm, other parts, AM P69136, near mouth of Separation Creek, Victoria. Scales for habitus and H: 1 mm; remainder: 0.1 mm.

Fig. 31. Transorchestia marlo n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 31. Transorchestia marlo n.sp., holotype male, 18.6 mm, AM P69136, near mouth of Separation Creek, Victoria. Scales represent 0.5 mm.

Fig. 28. Protorchestia ceduna n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 28. Protorchestia ceduna n.sp., holotype male, 18.1 mm AM P69066, Port Albert, Victoria. Scales represent 0.2 mm.

Fig. 29. Protorchestia ceduna n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 29. Protorchestia ceduna n.sp., holotype male, 18.1 mm, U1–2 and T, AM P69066, Port Albert, Victoria; female, 10.2 mm, G1–2, AM P69067, Ceduna, South Australia. Scales represent 0.2 mm.

Fig. 25 in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 25. Platorchestia platensis (Krøyer, 1845), paralectotype male, 6.8 mm, ZMUC CRU 7803, Montevideo, Uruguay. Scales represent 0.2 mm.

Figure 20. A–G, Hydroides spiculitubus n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 20. A–G, Hydroides spiculitubus n.sp.: from holotype AM W21443. (A) dorsolateral view of worm with two opercula showing spicules sloughed off from ventral side of abdomen, dorsolateral anterior abdominal tori and pair of eyespots on anal segment; (B) dorsolateral view of second specimen with a single operculum, showing dorsolateral arrangement of anterior abdominal tori and pair of anal eyespots; (C) operculum; (D,G) enlarged view of posterior ends of two worms showing the eye-spots on anal segment; (E,F) bayonet-shaped special collar chaetae.

Fig. 26 in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 26. Platorchestia platensis (Krøyer, 1845), paralectotype female, 7.8 mm, PL1–3, ZMUC CRU 7803. Scales for PL1–3: 0.3 mm; BR2–6 and O2–5: 0.5 mm.

Figure 8 in Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications

Figure 8. SEM of Megalomma interrupta n.sp. (A–D) AM W35490, from Lizard Island (QLD): (A) uncini, third thoracic chaetiger; (B) inferior notochaetae, fifth thoracic chaetiger, ventral view; (C) anterior abdominal neurochaetae, ventral view; (D) anterior abdominal uncini. (E–H) AM W35488, from One Tree Island (QLD), with radiolar eyes on dorsalmost pairs of radioles: (E) thoracic uncini; (F) thoracic inferior notochaetae, ventral view; (G) anterior abdominal neurochaetae, ventral view; (H) anterior abdominal uncini. (I–K) AM W35488 from One Tree Island (QLD) with several radiolar eyes: (I) thoracic uncini; (J) thoracic inferior notochaetae, ventral view; (K) anterior abdominal uncini. (L–O) AM W35498, specimen from Kimberleys (WA): (L) uncini, third thoracic chaetiger; (M) notochaetae, fourth thoracic chaetiger, ventral view; (N) anterior abdominal neurochaetae; (O) anterior abdominal uncini.

Figure 6. A–L in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 6. A–L, Vermiliopsis glandigera Gravier, 1908. A–E, a juvenile specimen from AM W21470: (A,B) portions of the tube; (C,D) two views of worm removed from tube. The operculum has few partitions, the enlarged peduncular annulus just below the operculum and the extent of the thoracic membrane of the left side are shown; (E) another view of the same operculum. F–H, chaetae of a specimen from AM W21470: (F) collar chaeta; (G) thoracic uncini; (H) anterior abdominal uncini. I,J, a specimen from AM W21451: (I) tube with worm within; (J) worm removed from tube showing the number of partitions in the operculum, the enlarged peduncular annulus just below the operculum, and the extent of the thoracic membrane on the right side. K,L, a specimen from AM W202948: (K), worm and tube in situ; (L), worm removed from tube; the operculum has 12 partitions, the peduncular annulus below the operculum is enlarged.

Fig. 27. Protorchestia ceduna n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 27. Protorchestia ceduna n.sp., paratype female, 10.2 mm, habitus and H, AM P69067, Ceduna, South Australia; holotype male, 18.1 mm, other parts, AM P69066, Port Albert, Victoria. Scales for habitus: 1 mm; H: 0.5 mm; remainder: 0.1 mm.

Fig. 24. Platorchestia paraplatensis n in The Coastal Talitridae (Amphipoda: Talitroidea) of Southern and Western Australia, with Comments on Platorchestia platensis (Krøyer, 1845)

Fig. 24. Platorchestia paraplatensis n.sp., holotype male, 19.3 mm, AM P69144, PL1–3, BR2–6; paratype female 12.5 mm, O2–5. Scales for PL and BR: 0.2 mm and H: 1 mm.

Figure 19. A–E, Hydroides spiculitubus n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa

Figure 19. A–E, Hydroides spiculitubus n.sp. from AM W21443. (A) two tubes partly attached to each other; (B,C) magnified anterior ends of latter; (D) worm, in part of its tube: note non-calcareous inner tube consisting of closely adposed spicules, part of the detached inner tube folded over the posterior end of abdomen, the granular overlay along longitudinal ridges and the fine transverse ridges and grooves; (E) enlarged view of four spicules from inner tube.